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Old 09-27-2022, 11:26 AM   #1
Senior Member
National RV Owners Club
Join Date: Jul 2018
Location: Melbourne, FL
Posts: 465
Gray Tank Issue (Maybe)

A 2006 NationalRV SeaBreezeLX. When camping, normal procedure is to keep the valve on the gray tank closed, and every day or two drain. My wife and I do not take "military" showers, and the gray tank is only 40 gallons, so between the showers and washing dishes it can get at least 50% full.

This week were were at Ft. Wilderness at Disney (was, because Ian has messed that up....a small thing compared to the possible hurt Ian will be doing to FL starting tomorrow) and I left the gray valve open the first day, which I have done before. No problems, EXCEPT when I was finishing my shower I noticed the shower was not draining. Went out (after dressing of course) and looked, and valve was open. So I had my wife run the sink, and sure enough a small amount of water began to come out into the hose. OK, looks like the shower drain is clogged. Came back in and all the water from the shower was now gone. Hmmm....So it did the same thing today.

SO THE QUESTION - before I run a small snake through the piping or try and find the P-trap, is it a bad idea to pour a bit of liquid plumber into the shower drain? I use it here at home, and everything here is PVC, like the RV. Or is that a really, really bad idea.

Thoughts/experience would be appreciated before I dive into this after Hurricane Ian passes....


SeaBreeze LX 8321
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Old 09-27-2022, 11:43 AM   #2
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YES you can use 'drain cleaner'

If you have a standard 'P' trap you can use a 'zipit' drain tool to pull hair/stuff out

If you have a 'waterless' trap (bladder) then drain cleaner only no snakes/drain tools as they will damage the bladder
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Old 09-27-2022, 12:04 PM   #3
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Biggest problem our shower drain had was hair. Precious owner didn't ever clean it out. Get one of those barbed hair removal tools. remove drain cover and run that in and out until you stop getting a lot of hair.

Ray & Wendy
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Old 09-27-2022, 12:38 PM   #4
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National RV Owners Club
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Thank you both. I had forgotten about the hair removal tool. I have a small snake that could work, but that tool might work better. On to Amazon!!!

SeaBreeze LX 8321
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gray tank, tank

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