Winterizing Regrets: Costly RV Repairs I See Every January

Published on January 12, 2026 at 5:40 PM

Learn From What Other RV Owners Regret

January is the month when mobile RV techs start seeing the consequences of rushed or incomplete winterizing. Here are the most common problems — and how to avoid them.

 

1. Cracked PEX Lines

Even a small pocket of water can freeze and split tubing. The worst part? Damage often stays hidden until spring.

2. Burst Water Heater Tanks

Owners who forget to bypass the water heater may end up with a ruptured tank — a costly replacement.

3. Split Outdoor Shower Lines

Outdoor showers freeze first. Many owners forget to purge or antifreeze them.

4. Leaking Faucets or Mixing Valves

Freeze expansion damages delicate internal components.

5. Toilet Valve Fractures

Often missed because they’re small, but catastrophic once water pressure returns.

How to Prevent These Issues

Use proper antifreeze, fully blow out lines, verify your bypass system works, and check low-point drains. When in doubt, have a pro look it over.


If you’re worried something wasn’t winterized correctly, schedule a Mid-Winter RV Freeze Inspection with MilTech RV.
We find problems early—before they cost thousands later.

Add comment

Comments

There are no comments yet.