The monitor reads full
Waste or mineral buildup can bridge the sensor contacts and cause a false reading—even after the tank has been dumped.
MilTech RV Tank Rescue
When flushing isn't enough, your RV tanks may need a real cleaning.
Professional mobile hydro-jet cleaning for RV black and gray holding tanks—designed to remove buildup that routine dumping and basic rinsing can leave behind.
- Mobile RV service
- Black and gray tanks
- Veteran-owned
More than an empty tank
Your holding tank can be empty and still be dirty.
Every time you dump, some material can stay behind. Over time, waste and paper can harden on the bottom and walls of the tank. Gray tanks collect soap, grease, food particles, hair, and other residue.
A quick rinse may move loose material, but it doesn't always reach the buildup stuck inside. That's where a professional RV tank cleaning can help.
- Persistent odors after dumping
- Slow or incomplete draining
- Tank level sensors that stay on
- Suspected waste or paper buildup
- An RV that has been stored or recently purchased
Common warning signs
Is your RV telling you the tanks need attention?
One symptom doesn't always prove the tank is dirty. We look at how the system drains and what comes out before recommending the next step.
Odor keeps returning
Residue left inside the tank can hold odor. Venting, seals, plumbing, and toilet operation may also need to be checked.
The tank drains slowly
A slow dump may point to buildup, a developing clog, a valve problem, or an issue farther downstream.
You bought a used RV
You usually don't know the tank's history. A baseline cleaning removes the guesswork and shows how the system is actually behaving.
The RV sat for months
Material left in a tank can dry and harden during storage, especially when a black tank was stored without enough water.
Regular rinsing isn't helping
Built-in flush systems are useful maintenance tools, but their spray pattern may not reach every area of every tank.
Professional tank cleaning at your RV.
Black and gray tank cleaning is performed as a mobile service at the RV when the site, utilities, access, and waste connection are suitable for the work.
What normal dumping can leave behind
What builds up inside RV holding tanks?
An RV tank can drain and still have material stuck to the floor, walls, valves, piping, or sensor area. The type of buildup depends on how the RV has been used and maintained.
Waste & paper residue
Black tanks can retain waste and toilet-paper residue, especially when too little water is used or the tank has been stored with material inside.
Gray-tank residue
Soap, grease, food particles, hair, and other debris can coat gray tanks and contribute to odor or slower drainage.
Mineral deposits
Mineral buildup can form inside holding tanks and waste plumbing. In some systems, hardened deposits can contribute to inaccurate readings, restricted flow, and material that routine rinsing does not remove.
Why this matters: Dumping removes what flows out. Professional hydro-jet cleaning is intended to loosen material that remains attached inside the waste system and carry it out through the approved sewer connection.
Choose the right next step
Is RV Tank Rescue the right service for you?
Tank cleaning is designed to remove internal buildup. Some symptoms point to a separate plumbing, valve, venting, or electrical problem that should be evaluated first.
Tank Rescue is likely a good fit when:
- The tank drains, but odors return after dumping
- Tank-monitor readings remain full or inaccurate
- Drainage is slower than it used to be
- The RV was stored with material in the tanks
- You recently purchased a used RV with an unknown tank history
- Your built-in tank flush is no longer producing satisfactory results
Contact us for evaluation first when:
- A tank will not drain at all
- A valve, pipe, fitting, or tank is actively leaking
- You suspect a foreign object or damaged plumbing
- The monitor panel, sensor wiring, or electrical system appears faulty
- The RV has an unusual, modified, or inaccessible waste system
- You suspect tank, valve, or plumbing damage rather than buildup
Not sure which side fits? Submit the symptoms, RV information, and a few photos. Aron and Sheryl will review the request before service is scheduled.
More than routine maintenance
Why regular flushing may not be enough
Dumping, chemicals, and built-in flush systems all have a place in routine care. Professional cleaning is intended for buildup and performance concerns those methods may not resolve.
| Method | Routine rinsing | Targets hardened buildup | Reaches multiple tank areas | Drainage checked afterward |
|---|---|---|---|---|
| Dumping the tank | Limited | No | No | No |
| Tank chemicals | Maintenance aid | Not guaranteed | Depends on circulation | No |
| Built-in tank flush | Yes | Limited | Fixed spray location | Limited |
| MilTech Tank Rescue | Yes | Designed for buildup | Rotating hydro-jet | Yes |
Results depend on tank design, condition, accessibility, and whether buildup is the actual cause of the symptom.
What to expect
Our RV Tank Rescue process
We explain what we're seeing as we work. No mystery treatment and no promise that every tank problem is “just a clog.”
Inspect
We check the waste connection, valves, drainage behavior, access, and the approved tanks before cleaning begins.
Set Up
We connect the cleaning equipment and confirm that the freshwater source, sewer connection, hose routing, and work area are ready.
Clean
We direct a rotating hydro-jet nozzle through the waste system to loosen buildup from accessible interior surfaces.
Verify
We continue flushing and draining while monitoring the discharge, then review drainage behavior and accessible monitor readings.
Explain
We tell you what we observed, what improved, and whether a separate valve, plumbing, venting, sensor, or repair concern should be addressed.
Can we service your RV?
Tank Rescue works with many common RV waste systems.
Final serviceability depends on tank access, valve location, plumbing configuration, discharge setup, available utilities, and the condition of the waste system.
Travel Trailers
Standard black and gray holding-tank systems can often be serviced when the termination and valves are safely accessible.
Fifth Wheels
Multiple tanks and multiple valve locations are common. Tell us the tank count and send photos of the discharge setup.
Motorhomes
Class A, B, and C waste systems may be serviceable depending on plumbing layout, compartments, macerators, and outlet access.
Toy Haulers
Multiple holding tanks or discharge points may require additional setup. Tank count and connection photos help us plan the visit.
Used RV Baseline Cleaning
If you recently purchased an RV and don't know its tank history, Tank Rescue can establish a cleaner baseline and show how the system drains.
Advance Review Required
Macerators, modified plumbing, inaccessible valves, multiple outlets, active leaks, cut piping, and tanks that will not drain should be reviewed before scheduling.
A professional finish to the service
Tank Rescue Service Summary
Tank cleaning should leave you with more than “we flushed it.” Our goal is to explain what was observed, how the approved tanks behaved, and what you should do next.
- RV and tanks serviced
- Customer's original tank concern
- Drainage behavior and observable buildup
- Accessible monitor readings when applicable
- Valve, connection, or access observations
- Maintenance recommendations
- Separate repair recommendation when an additional concern is found
Cleaning or repair?
Sometimes a dirty tank isn't the whole problem.
Tank Rescue addresses buildup. Because MilTech RV is also a mobile RV repair company, we can recognize when the symptom points beyond cleaning and explain what should be evaluated next.
Cleaning-related concerns
- Waste and paper buildup
- Residue contributing to odor
- Dirty sensor surfaces
- Material left after routine dumping
- Some buildup-related drainage restrictions
Possible repair or diagnostic concerns
- Failed or leaking waste valves
- Damaged fittings, piping, or tank connections
- Toilet or venting problems
- Failed sensors, wiring, or monitor panels
- Macerator or modified waste-system problems
No surprise repair work: If we find something outside the approved cleaning scope, we explain it first. Diagnosis, parts, modifications, and repairs are performed only with separate customer authorization.
Know what you are approving
What standard tank cleaning includes
We separate cleaning from repair work so you understand what the appointment is intended to accomplish before work begins.
Included in Tank Rescue
- Inspection of accessible waste connections and valves
- Hydro-jet cleaning of the approved black and gray tanks
- Repeated flushing while monitoring the discharge
- Drainage verification after cleaning
- Review of accessible tank-monitor readings
- A clear explanation of what we observed
Not included in standard cleaning
- Tank, valve, pipe, fitting, or toilet replacement
- Electrical sensor, wiring, or monitor-panel repair
- Macerator repair, removal, or system modification
- Freshwater-tank or potable-water-system sanitizing, which is a separate plumbing service
- Repair of damaged, collapsed, or inaccessible plumbing
- Diagnostic or repair work beyond the approved cleaning scope
- Parts, extended travel, or other separately authorized work
Results you can expect: Cleaning may improve odors, drainage, and tank readings when buildup is the cause. It cannot repair a failed sensor, damaged wiring, broken valve, leaking plumbing, venting problem, or damaged tank.
Useful answers—not just a rinse
What you should know when the service is finished
We explain what we observed so you can make a better decision about maintenance, monitoring, or any recommended repair.
We review the drainage behavior before and after the approved cleaning.
We explain what was removed and whether the discharge changed during cleaning.
Accessible monitor readings are reviewed without promising repair of defective components.
Valve, venting, plumbing, sensor, or access concerns are identified when observable.
We explain practical use, water, dumping, and rinsing habits based on what we found.
You receive a clear recommendation if diagnosis or repair should be considered separately.
Real MilTech RV customer feedback
Professional service begins with trust.
MilTech RV is rated 4.7 out of 5 from 22 Google reviews. These verified comments reflect customers’ overall experience with our communication, equipment, scheduling, and quality of work.
★★★★★
“Aron and Sheryl at Miltech were great to work with and they did amazing work.”— Mike Sellberg
MilTech RV customer review
★★★★★
“Aron was very knowledgeable and had the right equipment to diagnose the problem with my slide.”— Steve Hurley
MilTech RV customer review
★★★★★
“Great customer service from two very nice people.”— Google Business Review
MilTech RV customer review
These are general MilTech RV service reviews and are not represented as Tank Rescue-specific testimonials. Tank-cleaning reviews can replace or supplement them as customers provide service-specific feedback.
Straightforward pricing
Choose the number of holding tanks.
See the standard Tank Rescue cleaning price and normal appointment total before you request service.
Estimated Appointment Total
$350
1 holding tank$275
Standard mobile service call$75
Estimated total$350
Other charges may apply: Each tank beyond three is $75. Severe blockage or a hardened waste pyramid starts at +$100. Travel beyond the normal 30-mile service area is $2 per mile. Diagnosis, repairs, parts, modifications, difficult access, or other authorized work are separate.
Same-day campground group: When 2 or more RVs at the same campground schedule Tank Rescue for the same day, the standard $75 mobile service-call fee is waived for participating customers.
Ask About Your RV
New-to-you RV?
You inherited the tank-maintenance history too.
A used RV can look spotless above the floor while the holding tanks still carry years of unknown habits. You may not know how much water the previous owner used, whether the black valve was left open, how often the tanks were rinsed, or how the RV was stored.
A baseline Tank Rescue cleaning can help remove existing buildup and give you a better starting point for your own maintenance routine.
RV parks • resorts • rallies • clubs
Organizing Tank Rescue for multiple RVs?
When two or more RVs at the same campground schedule Tank Rescue for the same day, MilTech RV waives the standard $75 mobile service-call fee for participating customers. Each RV must have approved water and sewer access and a confirmed appointment.
- Provide the park, resort, rally, club, or campground location
- Estimate the number of participating RV owners
- Confirm approved freshwater and sewer access for the service area
- Identify an organizer or contact person for site coordination
- Each customer’s final scope, approval, and payment are handled individually unless another arrangement is confirmed
Plan for the appointment
What to know before Tank Rescue arrives
Tank count, condition, plumbing layout, and access can change the time and equipment required. We review the RV details first and confirm the expected appointment window and preparation instructions.
Appointment timing and preparation
- The expected service window is confirmed after we review the RV and symptoms
- Please remain reachable at the beginning and when findings are reviewed
- Clear personal items and obstacles from the waste-connection and valve area
- Secure pets and provide safe access around the RV
- Do not add chemicals, fill tanks, or change the tank condition unless instructed
- Follow the preparation instructions included with the confirmed appointment
Conditions that need advance review
- Macerator-equipped or modified waste systems
- Multiple discharge outlets or remotely operated valves
- Enclosed, damaged, leaking, or difficult-to-access plumbing
- Portable waste totes, cassette toilets, or composting toilets
- Tanks that will not drain at all or contain a suspected foreign object
- Any prior repair, cut pipe, temporary fitting, or non-factory modification
Freshwater-system note: Tank Rescue is for RV black and gray holding tanks. Freshwater-tank and potable-water-system sanitizing are separate plumbing-maintenance services.
Before you request service
Help us confirm the right service, price, and access.
Providing these details up front helps us identify whether you need cleaning, diagnosis, or repair—and reduces scheduling delays.
Please provide:
- RV year, make, model, and RV type
- Number of black and gray holding tanks
- A description of the odor, drainage, clog, or sensor concern
- Your exact location, campground, resort, or storage site
- Photos of the waste connection, valves, and tank-access area
- Whether the RV uses a macerator or modified waste system
Please confirm:
- An approved sewer connection is available at the RV
- A working freshwater connection is within reach
- The waste valves and connections are safely accessible
- Slides, storage items, skirting, or other obstacles do not block safe access to the waste connection
- The campground or property permits on-site tank cleaning
- You have disclosed any leaks, damaged parts, or prior modifications
- You understand repairs require separate approval
- You will avoid showers, laundry, dishwashing, toilet use, or other water discharge when asked during active cleaning
Submit
Send the RV details, symptoms, location, tank count, and helpful photos through the request link.
Review
Aron and Sheryl review the information to determine whether Tank Rescue is the right next step.
Confirm
We confirm the expected scope, pricing, access requirements, service area, and available appointment date.
Approve
You approve the service before work begins. Any additional diagnosis or repair is discussed separately.
Protect the results
Practical tank care after professional cleaning
We review maintenance recommendations based on what we observe. These general habits can help reduce future buildup and drainage problems.
Use enough water
Use sufficient water during normal toilet operation so waste and paper can move through the tank when it is dumped.
Keep the black valve closed
During normal use, keep the black-tank valve closed so liquid remains available to carry waste when you dump. See the black-valve guide below.
Protect the plumbing
Do not flush wipes, hygiene products, or other materials that are not intended for an RV holding-tank system.
Continue routine rinsing
Use the RV’s built-in tank flush as a maintenance tool when equipped and follow the manufacturer’s operating instructions.
Watch for returning symptoms
Recurring odors, slow drainage, leaks, or backups may point to venting, valve, plumbing, or component problems—not just buildup.
Follow the findings
Use the recommendations provided after service and separately address any sensor, valve, venting, or plumbing concern that remains.
One habit prevents major problems
Keep the black-tank valve closed during normal use
Even at a full-hookup campsite, the black valve should generally stay closed until it is time to dump. The tank needs enough liquid to help carry solid waste and toilet paper out through the drain.
An open valve can let liquid escape while solids stay behind
When the black valve is left open, wastewater can continuously drain away. Solid waste and paper may settle on the tank floor, dry in place, and build into a hard obstruction sometimes called a pyramid plug.
- Helps keep waste suspended in enough liquid to drain more effectively
- Reduces the chance of hardened buildup, clogs, and incomplete dumping
- Helps limit odor and sewer-gas pathways through the connected hose
- Supports cleaner tank walls and more reliable level-sensor readings
Full hookups do not mean “leave it open.” Connect the sewer hose securely, but keep the black valve closed between dumps.
Closed for use. Open only to dump.
Use adequate water with each toilet flush and allow the tank to accumulate enough liquid for an effective dump. Monitor the tank level and never allow it to overfill.
- Verify the sewer hose and fittings are secure before opening a valve
- Dump the black tank first, then close its valve completely
- Dump the gray tank afterward, when appropriate, to help rinse the hose
- After dumping, restore water to the black tank as directed by your RV maker
Important: Gray-tank practices may differ. Always follow the instructions for your specific RV, valve arrangement, macerator or pump system, and campground. Cassette, composting, and modified waste systems require their own procedures.
Attach and support the sewer hose, confirm the fitting is seated, and keep the black valve closed.
Water helps keep waste mobile and provides the volume needed to carry solids during dumping.
Wait until the tank has enough contents for an effective dump, without allowing it to overfill.
Open the black valve only for dumping. Allow flow to finish, then close the valve completely.
When appropriate for your setup, gray water can help rinse residue from the sewer hose.
Add the manufacturer-recommended amount of water or treatment, then keep the black valve closed.
Work directly with the owners
Meet the MilTech RV service team
Tank Rescue requests are reviewed by Aron and Sheryl Jemison—not routed through a call center. We focus on clear communication, appropriate service preparation, and explaining what we observe before recommending another step.
Aron Jemison
RV Technician & Certified RV Inspector
Retired U.S. Navy veteran, NRVTA-trained RV technician, and NRVIA Certified RV Inspector. Aron performs the technical evaluation, cleaning, verification, and customer explanation.
Sheryl Jemison
Customer & Field Support
Sheryl supports customer scheduling, service coordination, parts organization, and field appointments so customers know what information and access are needed.
Seasonal mobile service
Where RV Tank Rescue is available
Include your exact address, campground, resort, or storage location so we can confirm availability and any travel charge.
Serving the Des Moines metro within the normal 30-mile service area through October 14, 2026. MilTech RV returns April 14, 2027.
Seasonal mobile Tank Rescue availability from November 12, 2026 through March 26, 2027, subject to location and schedule.
Locations beyond the normal 30-mile service area are billed at $2 per mile. We confirm applicable travel before scheduling.
Important service information
- The customer provides an approved sewer connection and working freshwater connection within reach of the RV.
- The RV owner confirms that the campground, resort, storage facility, or property permits on-site tank cleaning.
- Waste valves, connections, and approved tanks must be safely accessible when service begins.
- The quoted cleaning scope is based on the RV information and access details provided by the customer.
- Parts, severe obstruction work, diagnostics, repairs, and system modifications require separate authorization.
- Cleaning may improve dirty sensor readings, but it cannot guarantee repair of failed sensors, wiring, panels, valves, plumbing, or tanks.
- Payment timing, accepted payment methods, and cancellation or rescheduling terms are provided with the confirmed appointment.
- Unsafe weather, unavailable utilities, restricted site access, or undisclosed system damage may require the appointment to be delayed, rescheduled, or re-scoped.
Questions RV owners ask
RV tank cleaning FAQs
How much does RV Tank Rescue cost?
Standard cleaning is $275 for one holding tank, $325 for two tanks, and $375 for three tanks. Each additional tank is $75. A standard $75 mobile service call applies, making the normal totals $350, $400, and $450 respectively. Severe blockage or a hardened waste pyramid starts at an additional $100. Travel, diagnostic work, parts, and repairs are separate and require approval.
How long does a Tank Rescue appointment take?
The appointment length depends on the number of tanks, tank condition, plumbing layout, drainage behavior, access, and whether an obstruction or separate repair concern is discovered. Aron and Sheryl review the RV details and confirm the expected service window before the appointment.
How should I prepare the tanks before service?
Do not add chemicals, fill the tanks, or change their condition unless MilTech RV specifically asks you to do so. Clear the waste-connection and valve area, secure pets, confirm freshwater and sewer access, and follow the preparation instructions provided with the confirmed appointment.
Should I dump the tanks before you arrive?
Follow the preparation instructions MilTech RV provides for your specific appointment. If a tank will not dump, drains unusually slowly, or you believe it is blocked, tell us before the visit rather than trying to force it. That information can change the equipment, time, and service scope required.
Do I need to remain with the RV?
You do not necessarily need to stand with the technician throughout the cleaning, but please remain reachable when service begins and when Aron reviews the findings, results, or any additional recommendation.
Will cleaning fix inaccurate tank sensors?
It may help if buildup is coating the sensor contacts. It won't fix a failed sensor, damaged wiring, a faulty monitor panel, or a sensor that uses a different technology. We check the readings after cleaning and explain what we find.
Do you clean both black and gray tanks?
Yes. Black tanks commonly collect waste and paper. Gray tanks can build up soap, grease, food particles, hair, and other residue. Both can develop odor and drainage problems.
Does Tank Rescue include the freshwater tank?
No. Tank Rescue covers RV black and gray holding tanks. Freshwater-tank and potable-water-system sanitizing are separate plumbing-maintenance services and are not performed with waste-tank cleaning equipment.
Is this the same as using my built-in tank flush?
No. A built-in flush is helpful for routine maintenance, but it sprays from a fixed location. Our cleaning equipment is designed to direct water across more of the tank interior and remove loosened material through the waste outlet.
Can you clear a completely blocked tank?
Many blockages can be cleared, but the cause and severity matter. A damaged valve, foreign object, collapsed piping, or another mechanical problem may require repair beyond tank cleaning. We assess the situation before promising a result.
What types of RVs can receive Tank Rescue service?
Tank Rescue may be appropriate for many motorhomes, fifth wheels, travel trailers, toy haulers, and other RVs with accessible black or gray holding-tank connections. Tank layout, valve access, plumbing modifications, and discharge configuration must be reviewed before service is confirmed.
Can you clean the tanks on a recently purchased used RV?
Yes. A used RV may have an unknown tank-maintenance history even when no major symptom is present. A baseline cleaning can help reveal how the tanks drain, whether buildup is present, and whether monitor readings or another component may need attention.
Can you service an RV with a macerator system?
Macerator-equipped and modified waste systems require advance review. Send photos of the discharge connection, valves, hose arrangement, and any modifications. Macerator repair, removal, or conversion is separate from standard Tank Rescue cleaning.
What if my RV has more than one sewer outlet?
Tell us how many discharge outlets the RV has and which tanks connect to each outlet. Photos help us evaluate hose reach, access, tank count, and whether additional setup or pricing may apply.
Will professional cleaning eliminate every tank odor?
Cleaning may reduce odor when residue or buildup is the cause. Odors can also come from roof vents, toilet seals, air-admittance valves, leaking fittings, dry traps, plumbing damage, or other sources that require separate diagnosis or repair.
What if a tank valve or waste connection is leaking?
Disclose active leaks before the appointment and include clear photos. A damaged valve, fitting, pipe, or tank may need repair before cleaning can be performed safely. Parts and repair labor are outside the standard cleaning price and require separate authorization.
What type of water and sewer access is required?
The customer provides a working freshwater connection within reach of the RV and an approved sewer connection where discharged tank material can be handled legally and safely. The campground, resort, storage facility, or property must permit the service.
Will you perform additional repairs without asking me?
No. If cleaning reveals a valve, sensor, wiring, venting, plumbing, macerator, or access problem outside the approved Tank Rescue scope, we explain the finding and discuss the next step. Additional diagnostic or repair work requires separate customer authorization.
How often should RV tanks be professionally cleaned?
There isn't one schedule that fits every RV. Use, storage habits, tank design, and normal maintenance all matter. Many owners schedule cleaning when odors, slow drainage, or sensor problems appear, or after buying a used RV.
Can our RV park or group schedule multiple cleanings?
Yes. When two or more RVs at the same campground schedule Tank Rescue for the same day, the standard $75 mobile service-call fee is waived for participating customers. Each RV must have approved water and sewer access and a confirmed appointment. Each customer’s scope, authorization, and payment are handled individually unless another arrangement is confirmed.
Where and when is Tank Rescue available?
MilTech RV serves the Greater Des Moines, Iowa area through October 14, 2026, and returns April 14, 2027. Yuma, Arizona seasonal service is available November 12, 2026 through March 26, 2027. Availability and travel charges depend on your exact location, so include the campground, resort, or address with your request.
Choose the next step that fits
Ready to talk about your RV?
You don't have to diagnose the problem before contacting us. Tell us what the RV is doing and we'll review the information before the appointment is confirmed.
I know I need Tank Rescue
Send the RV information, tank count, location, symptoms, and photos so we can confirm access, scope, and pricing.
I'm not sure if it's cleaning or repair
Describe the odor, clog, drainage, sensor, leak, valve, or plumbing concern. Photos are encouraged so we can review the system before scheduling.
I want group service
Tell us the campground, resort, rally, or club location and approximate number of RVs. Two or more participating RVs on the same day qualify for the service-call waiver.