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How to Repair a Hole in RV Grey Water Tank
Electrical Medium 1-2 hours 197 👍

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
RV Grey Water Tank Clogged? 7 Proven Solutions to Clear Blockages Fast
Plumbing Medium 1-2 hours 196 👍

RV Grey Water Tank Clogged? 7 Proven Solutions to Clear Blockages Fast

Found out my RV service tech wants $800+ to replace the entire grey water system on my 2007 RV for an intermittent blockage that seems fixable. It doesn't seem to matter if we're level or not - it's completely random.

I've tried using a high suction shop vac and even attempted snaking it, but I'm nervous about forcing things and making the problem worse. I suspect it might be a manufacturing plug that fell into the tank, but I'm not sure. I found one solution with a reverse flush valve that seems to work temporarily, but I'm concerned about the underlying cause.

What are the safest and most proven methods to diagnose and fix these random grey water blockages? I don't want to damage the tank or create bigger problems, but this unpredictable draining is driving me crazy. Are there specific cleaning products or techniques that actually work without risking harm to the system? …more
RV Gray Tank Draining Slowly? Fix Clogs & Flow Issues
Plumbing Medium 2-3 hours 109 👍

RV Gray Tank Draining Slowly? Fix Clogs & Flow Issues

Called around to shops about my 2019 Forest River Cherokee's gray tank drain crawling—what used to take 5-10 minutes now drags on for 30-45 minutes. The black tank still drains at normal speed, so I don't think it's a problem with the main sewer connection or hose.

I'm wondering what typically causes gray tanks to develop drainage problems over time. We do a lot of dishwashing in the RV and I'm thinking maybe grease or soap buildup could be creating blockages somewhere in the system. The flow starts out okay but quickly reduces to just a trickle, even though I know there's still plenty of water in the tank.

What are the most common culprits behind slow gray tank drainage, and what's the best approach for diagnosing and fixing these flow issues? I'd rather understand the root causes and proper solutions before I start taking things apart or using harsh chemicals that might damage the system. …more
Thor Ace Macerator vs Gravity Dump: Complete RV Waste System Setup Guide
Plumbing Easy 15-30 minutes to learn 93 👍

Thor Ace Macerator vs Gravity Dump: Complete RV Waste System Setup Guide

Woke up to my neighbor insisting I ditch the macerator on my 2013 Thor Ace 29.2, my dealer pushing me to keep it, and YouTube saying something completely different. How exactly does this work? Like, do I need to do something to switch between them on the passenger and driver sides, or can I just use whichever one I want whenever?

I'm assuming there's gotta be some kind of valve system to control which outlet gets the flow? Just want to make sure I don't mess something up by having both open at the same time or whatever. …more
Robert, RV Mechanic
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