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RV Water Pump Losing Prime: Troubleshooting & Winterization
Plumbing Medium 2-4 hours 447 👍 9

RV Water Pump Losing Prime: Troubleshooting & Winterization

Got a 2022 Tiffin Open Road 34PA with a water pump that keeps losing prime during winterization — about to buy a replacement but wondering if I'm throwing money at the wrong problem? I can get it back by quickly opening and closing one of the lowest drain valves, but then it just loses prime again after a while. This has happened on other RVs I've winterized too, but it's particularly stubborn on this Tiffin.

I'm suspecting it might be the inline check valve next to the pump or maybe the one behind the Truma hot water heater, but I'd love some guidance on proper diagnosis. What are the most common causes of prime loss during winterization, and what's the best way to troubleshoot and fix this? I want to make sure I'm covering all my bases for winter storage prep. …more
How to Repair a Hole in RV Grey Water Tank
Electrical Medium 1-2 hours 147 👍

How to Repair a Hole in RV Grey Water Tank

Tried marine epoxy on my old Class A's tank and it worked perfectly — but now I've drilled a 1 inch hole in my ABS grey water tank while running battery cables. The hole is in an awkward spot near the rear wheel vault with thick metal bars and beams, making repairs challenging.

What's the best way to repair this? I've prepared a patch by flattening and heat forming a pipe section, beveling edges and scouring surfaces for a strong mechanical bond. Should I cement the ABS patch and then cover with fiberglass, or are there other recommended repair methods? I want to ensure a durable fix for this tricky tank damage. …more
Best RV Thermostatic Shower Mixing Valves 2024 - Installation Guide
Appliances Medium 3-4 hours 125 👍

Best RV Thermostatic Shower Mixing Valves 2024 - Installation Guide

According to my screaming every morning, there's this scalding burn followed by an icy shock sensation hitting my back in my RV shower. There's no middle ground - it's like my water heater has anger management issues.

I'm shopping for a thermostatic mixing valve to save myself from daily temperature shock therapy. I keep seeing mechanical models like the Symmons Temptrol and Phoenix PF213200, but honestly have no idea if they're any good. And don't get me started on those fancy digital ones like the Kohler DTV+ - they look amazing but I'm guessing they're about as RV-friendly as a pet elephant.

Anyone know which thermostatic valves actually work well in RVs without requiring me to rewire half my rig or sacrifice my firstborn to the plumbing gods? …more
RV Water Heater Not Hot Enough: Fix Lukewarm Water Issues
Appliances Medium 2-4 hours 112 👍

RV Water Heater Not Hot Enough: Fix Lukewarm Water Issues

Looked forward to our two-week cross-country trip starting tomorrow until I discovered my RV water heater that used to produce scalding hot water now barely gets lukewarm. Both the electric and gas functions appear to be working - I can hear the gas igniting and see the electric indicator light - but the water temperature just won't get hot enough for a decent shower.

I've been dealing with this for weeks now and it's driving me crazy. The water gets warm, but nowhere near the hot temperatures I used to get. Is this a common problem with RV water heaters? What are the most likely culprits when you're getting lukewarm water instead of hot? I really need to figure out what's causing this and how to fix it before my next camping trip. …more
RV Water Pump Running But No Water? Complete Troubleshooting Guide 202
Plumbing Easy 30-45 minutes 109 👍

RV Water Pump Running But No Water? Complete Troubleshooting Guide 202

Finally looking at my RV water pump right now and it's running constantly but there's absolutely zero water coming out of any faucets. However, when activating any fixture throughout the system, the water pump initiates and runs continuously without producing water flow at any outlet point.

All system components appear to be functioning mechanically - pump motor engages properly, electrical connections are secure, and there are no visible leaks in accessible plumbing runs. The symptom manifests uniformly across all water delivery points including kitchen, bathroom, and exterior service connections.

What diagnostic steps should be performed to identify the root cause of this no-flow condition despite continuous pump operation? …more
How to Fix RV Fresh Water Tank Leaks: Complete Diagnosis & Repair Guide
Plumbing Medium 1-4 hours 108 👍

How to Fix RV Fresh Water Tank Leaks: Complete Diagnosis & Repair Guide

Nobody warned me how tricky RV fresh water tank leaks could be — got my tools ready and determined to fix this dripping mess under my trailer myself. The dripping was pretty steady at first but seems to have slowed down overnight to just occasional drops. My tank gauge still shows full, so I don't think it's completely emptying out.

I can see there's an underbelly cover that would need to come down to access everything underneath, but I'm hoping maybe there are some easier spots I should check first? I'd rather not tackle removing panels if I don't have to - any guidance on where these leaks typically start would be really helpful, especially near the drain valve! …more

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How to Fix Cracked Dometic RV AC Covers & Roof Vents: Complete Repair
Exterior Medium 2-4 hours 105 👍

How to Fix Cracked Dometic RV AC Covers & Roof Vents: Complete Repair

Already tried following a YouTube tutorial to fix the cracked Dometic air conditioner cover on my 2022 East to West 1900MMK travel trailer but somehow made the crack even worse. What are my repair options - can I fix the crack or should I replace the whole cover?

Also dealing with a broken cap on the roof tank vent. I'm curious about material choices - I've noticed galvanized steel can rust, while PVC seems to degrade in sunlight. What are the pros and cons of different vent cap materials? What's a reasonable price range for replacement?

Looking for practical solutions for both issues. …more
Fix Wasteful RV Kitchen Cabinets - Thick Bottom Boards
Engine Medium 4-8 hours 104 👍

Fix Wasteful RV Kitchen Cabinets - Thick Bottom Boards

After hearing my RV dealer call these thick kitchen cabinet bottom boards "industry standard" while my mechanic buddy insists they're just wasteful space-stealers, I'm completely confused. I've been doing a complete remodel to maximize storage space, but I'm shocked at the poorly designed layout.

The cabinet bottom board is a ridiculous 2 inches thick - that's eating up 10% of my entire cabinet height! Even worse, the drawer cabinet only has about 4 inches of usable space on each side because of how the PEX water lines are routed. It's like they just threw those lines in there without any thought to space efficiency.

I keep hearing about how amazing modern RVs are, but this is just terrible design. Is there any way to actually fix these issues? Can I modify the cabinet bottoms to be thinner and reroute those PEX lines properly? I really need to reclaim this wasted space but I'm not sure where to start or if it's even possible to address both problems. …more
Fix RV Low Water Pressure on City Connection: Troubleshooting Pump Assembly
Plumbing Easy 30 minutes 103 👍

Fix RV Low Water Pressure on City Connection: Troubleshooting Pump Assembly

Last week my pressure regulator started reading a solid 40 PSI on city water but my water pump keeps cycling on for 5-6 seconds when everything says it should stay completely off. When I connect to city water, my water pressure regulator shows a solid 40 PSI, which should be plenty, right? But here's the weird part - my water pump keeps kicking on for about 5-6 seconds then shuts off, even though I'm connected to city water and the pump switch is supposed to be off.

The really frustrating thing is that the pressure feels weak throughout the RV, with specifically the bathroom sink and kitchen sink seeming low, though the shower has good pressure. I've already changed out the intake/check valve and don't currently have a filter in the system. I can see the pump running while on city water, which I know is not normal. I noticed the kitchen and bathroom sink screens were plugged - which might explain some pressure issues - but now I'm wondering about the toilet's low pressure. Could there be a screen in the toilet line I'm not seeing?

I've been full-timing for two years and never had this issue before. What should I be checking for? I'm handy enough to do basic repairs but need to know where to focus my troubleshooting efforts. …more
RV Black Tank Flush Not Working - Water Wont Go In
Plumbing Medium 1-2 hours 101 👍

RV Black Tank Flush Not Working - Water Wont Go In

According to my neighbor I need to replace the valve, the RV dealer says it's just a clog, and YouTube insists it's a pump issue with my 2012 36 QSP's black tank flush system. When I connect my hose to the flush port and turn on the water, nothing seems to go into the tank - the water just doesn't flow in like it should.

I'm wondering if there's a check valve that might be stuck or if something is clogged up? I've used the flush connection earlier in the year without any problems, so this is puzzling. I've heard about debris getting in the spray nozzle too. What are the most common causes when the black tank flush won't accept water, and what should I try to fix it? Any guidance would be really appreciated since I'm not sure what to troubleshoot first! …more
How to Fix RV Slideout Rubbing Against Exterior Wall - Complete Repair Guide
Slideouts Hard 2-4 hours 97 👍

How to Fix RV Slideout Rubbing Against Exterior Wall - Complete Repair Guide

Finally figured out why my neighbor's slideout glides like butter while mine scrapes horribly against the exterior wall every time — what's their secret? My slideout has started rubbing against the exterior bathroom wall, and the coach is perfectly level.

The main thing I've noticed is that the gap at the bottom of the slide is much smaller now compared to the top - it used to be about 1½-2 inches at the bottom, but now it's barely anything. There's also about a ½ inch difference in height from one end of the slide to the other when I measure from the top.

I've independently jacked up both sides of the slide more than an inch each and checked the gap, but neither showed a difference. When I crawled underneath, I couldn't see where the slide might have moved laterally closer to the wall. The exterior stripes still line up. I also noticed the shower hasn't been used in 6 years or longer (I bought this coach used).

I'm wondering if this could be some kind of drooping issue? I've heard about things like rollers wearing out, but I honestly don't know what to look for or where to start troubleshooting. Should I be checking underneath the RV? Any advice on what might be causing this rubbing and smaller gap would be hugely appreciated! …more
How to Fix Stuck RV Toilet Valve After Winterization - Step by Step
Plumbing Easy 30 minutes 96 👍

How to Fix Stuck RV Toilet Valve After Winterization - Step by Step

Called a repair shop about my RV toilet valve that only gets stuck when it's above 60 degrees outside — works perfectly fine during colder weather after winterization. During the camping season, my toilet works perfectly fine - the dump valve opens and closes smoothly without any problems. However, after I winterize my RV for winter storage and drain all the water from the system, I consistently run into the same frustrating problem when I try to de-winterize in spring.

The toilet dump valve gets completely stuck in the closed position and requires significant force to get it moving again. It seems like the valve mechanism seizes up during the months of storage when there's no water in the system. I'm assuming this happens because the seals and moving parts dry out completely without any moisture present during winter storage.

What's the best preventive maintenance I can do to keep this valve from sticking during winterization? Are there specific lubricants or treatments I should apply to the valve mechanism and seals before putting the RV into storage? I'd rather prevent this problem from happening in the first place rather than having to force a stuck valve every spring and risk damaging the toilet. …more
How to Lift RV Slideout for Floor Repair - Safe Methods
Slideouts Hard 4-8 hours 94 👍

How to Lift RV Slideout for Floor Repair - Safe Methods

Apparently my 2000 Allegro Bus slideout only starts sagging and needing floor repair when it hits 85 degrees outside — works perfectly fine otherwise. We discovered water damage under the slideout and need to replace some plywood subflooring, but there are screws I can only access if I lift the slide somehow.

I'm worried about damaging the slideout mechanism or worse, having it fall and hurt someone. The hydraulic system seems to work fine, but I've heard you shouldn't trust it alone for this kind of work. What's the safest method to lift and support a slideout while doing floor repairs underneath? I want to make sure I'm not making a dangerous mistake here. …more

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RV Water Pump Pulsing & Cycling Issues: 7 Causes + DIY Solutions
Plumbing Medium 45 minutes 94 👍

RV Water Pump Pulsing & Cycling Issues: 7 Causes + DIY Solutions

Noticed my RV water pump keeps pulsing and cycling on its own even when no faucets are running - is this dangerous with kids around? The water pump keeps turning on and off rapidly - like every few seconds - even when I don't have any faucets or anything running. It's doing this pulsing thing constantly.

I've heard someone mention something about an accumulator tank, but I'm not really sure what that is or how to check it. Could there be other things causing this too? I'd really appreciate some guidance on what might be wrong and where I should start looking. This is all pretty overwhelming as a beginner! …more
How to Winterize RV Dishwasher and Washing Machine with Antifreeze - Complete Guide
Appliances Easy 30-45 minutes 93 👍

How to Winterize RV Dishwasher and Washing Machine with Antifreeze - Complete Guide

During my first walkthrough of this RV I bought last month, I discovered the previous owner never properly winterized the dishwasher and washing machine. I've got a Fisher & Paykel dishwasher and a Contoure front loading washer that I absolutely cannot let freeze up.

I know I need to use RV antifreeze, but I'm honestly confused about the exact process. Do I just pour it in and run a cycle? How much do I use? I've read horror stories about people using the wrong type of antifreeze and ruining everything. I really need someone to walk me through the correct steps before I mess this up! …more
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