Waste Water Not Draining Out of My RV's Shower
Tips On How to Unclog an RV Sink
Why won't water drain out of the shower? First time out after winterized.Good Sam Extended Service Plan is mechanical breakdown insurance for your RV, 5th Wheel, Trailer, and Tow Vehicle! FREE Quote
ANSWER: Hi Karen, the first thing I would suggest you do is to make sure that the grey water tank on your RV is not full. When greywater tanks get overfull, the greywater will start overflowing into the shower and the other sinks in your RV will start draining slowly or not at all.
I also suggest that you not trust the readings on the tank level gauges in your RV as they are notorious for being totally inaccurate. So your best bet is to dump the grey water tank and see if that resolves the drain problem in your shower.
If the grey water tank was actually empty and/or the water still does not drain out of the shower after dumping the grey water tank, then that means you have a clog in the pipes leading from your shower to the grey water tank. Yes, the drain pipes in an RV can get clogged just like the ones in your stick home.
The first thing I would suggest you do is try to use a plunger
on the drain to see if you can break the clog loose. If that does not work you may need to get some drain cleaner
that is safe to use on PVC pipes. Depending on the severity of the clog, you may have to repeat the drain cleaning process.
Air Admittance ValveSPECIAL NOTE:
If this was the RV's Bathroom or Kitchen sink drain that was clogged instead of the shower. The first step that I would suggest is to go into the bottom sink cabinet and find the Air Admittance Valve
(Pictured Above. An Air Admittance Valve acts like a sink roof vent in an RV. When you pull the plug on a sink full of water, the valve opens up and allows the sink to drain properly. If the Air Admittance Valve
doesn't open up properly the water cannot drain properly and it should be replaced.
You can also try using a homemade Baking Soda
and White Vinegar
drain cleaner to unclog the drain. Simply dump as much baking soda as you can into the drain and then pour some White Vinegar into the drain until the baking soda starts to bubble. When the baking soda stops bubbling pour some more vinegar into the drain. Repeat this process 2 or 3 times or until the baking soda no longer bubbles. Now all you do is pour some boiling water down the drain and that should free things up.
Hope this helps.
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