RV Pipe Repair, Replacement & Leak-Proof Upgrades
Tight, well-routed RV pipes keep water clean, drains quiet, and trips stress-free. Kinked lines, rubbed-through PEX, cracked ABS drain pipes, or a burst elbow after a freeze can turn a weekend into a teardown.
Traveling RV Technicians (TRVT) provides mobile pipe diagnostics, PEX repairs, reroutes, drain/vent fixes, winterization, and full line replacements. We choose the right pipe for each job, use fittings that hold under vibration, protect runs from abrasion, and label everything so your RV plumbing stays dry on city water or tank and water pump.
Pipe Types in RVs (and Where Each Belongs)
Your coach blends pressure lines and drains:
PEX-A/PEX-B cold & hot water pipes (⅜″, ½″, ¾″ CTS): light, flexible, ideal for most interiors.
Reinforced vinyl/braided hose: short appliance jumpers; we replace if yellowed or stiff.
ABS/PVC drain, waste, and vent (DWV): sink, shower, toilet, and roof vents.
Heater/appliance connectors: braided stainless or high-temp hose with proper adapters.
Legacy polybutylene: found in older rigs; we proactively replace with PEX.
Right material + right location = fewer leaks and easier service.
Leak Diagnosis & Pressure/Flow Tests
We prove the cause before we cut:
Pump-off hold test for slow pressure drops.
Visual checks at elbows, tees, and pass-throughs; paper-towel tracing to pinpoint weeps.
Aerator and cartridge checks to rule out fixture restrictions.
Roof/vent sniff test if odors suggest a DWV issue, not a water-line leak.
You get a plain report: failed fitting, rubbed line, freeze crack, or vent/drain problem—plus the fix.
Push-to-Connect Couplers (Fast—When Appropriate)
SharkBite®, John Guest, SeaTech/Whale are great for service points:
Square-cut, deburred tube; mark insertion depth; push straight.
Use tube liners on soft tubing; clip/support so weight and vibration don’t work the joint loose.
In heat or hidden cavities, we often prefer crimp/clamp barbs for long-term stability.
Routing, Support & Abrasion Protection
Most pipe failures aren’t fittings—they’re rub-throughs:
Grommets and edge trim at every cabinet/pass-through.
Adel clamps/clips every 18–24″ (closer near pumps and corners).
Respect bend radius; avoid kinks behind drawers.
Sound-deadening pads at pump and manifold to cut water-hammer.
Clean routing keeps lines quiet and stops “mystery” leaks after travel days.
Freeze Protection, Winterization & Burst Repairs
Cold cracks the thinnest part first: elbows and cheap couplers. We:
Install labeled heater bypass kits and show correct blow-out/RV antifreeze steps (no pink in the water heater).
Add PEX heat tape, foam sleeves, and heated underbelly options for shoulder-season camping.
Replace burst sections with like-for-like pipe and protected fittings; we pressure-test hot and cold after warm-up.
Winter smart, avoid spring surprises.
Water Heater, Bypass & Check-Valve Piping
Hot-side mistakes cause cross-over and scalds:
Correct nipples/adapters for Suburban (anode) and Atwood/Dometic (no anode) tanks.
Bypass kits that truly isolate the heater for winterizing.
Check-valves oriented correctly so hot and cold don’t back-feed.
Dielectric isolation where dissimilar metals meet; drip pans and routed relief-valve lines.
Result: steady temps and simple maintenance.
Drain, Waste & Vent (ABS/PVC) Slope & Seals
Drain pipes must breathe and slope:
Maintain ~¼″ per foot fall on horizontal DWV runs.
P-traps that hold water (or HepvO® waterless where height is tight).
New AAVs (air admittance valves) when OEM units fail; clear roof vents.
ABS/PVC repairs with correct cement/primer; new gaskets at shower and sink drains.
Fast drains, no gurgle, no odor.
Water Quality, Sanitizing & Taste-Safe Lines
Keep pipes clean and safe:
Use NSF-61 potable-rated PEX, fittings, and sealants.
Sediment + carbon filters sized for real GPM so lines don’t starve.
System sanitize (measured bleach dose), rinse, then aerator flush.
Label filter change dates and keep a spare set in the wet bay.
Better taste, better flow, longer fixture life.