My clog is between anti siphon and black water tank. So clogged in fact that water pressure from pump caused siphon fitting to hiss when loosened.Wonder how to get acid in contact with clog. Will muriatic acid harm rubber tube. Looks original
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Thread: Master head won't drain
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Re: Master head won't drain
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Re: Master head won't drain
It clogged where water pooled. Therefore acid should be able to apply itself. Try the vinegar or the etch and prep. I’d really caution against the muriatic. The fumes alone aren’t worth it. Put the stuff in the bowl and flush. Reset breaker and do it again after a bit. Give it time.
Semper Siesta
Robert Clarkson
ASLAN, 1983 55C #343
Charleston, SC
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Re: Master head won't drain
Both vinegar and barnacle buster will work. The vinegar will be slower than the barnacle buster. However both are safe. I agree with Robert regarding not using acid.
SEVEN
1979 53' MY Hull #563
Antioch, California
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Re: Master head won't drain
Thanks Robert, I'll try the etching stuff first.
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Re: Master head won't drain
Pull the hose and replace it. The hoses start to crack and the smell starts to permeate through them after 15 years anyway. Time for new.
Sky Cheney
1985 53EDMY, Hull #CN759, "Rebecca"
ELYC on White Lake--Montague, MI
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02-11-2019 11:41 PM #47Senior Member
- Join Date
- Jun 2012
- Posts
- 544
Re: Master head won't drain
I only used the muriatic after Mike at Raz told me several times he uses it several times a year on his own vessel. I agree, try the phosphoric first. I only used a few ounces of muriatic in the metal T and nipples.
Seven, you should try the home depot stuff- 16/gallon versus 75+ for barnacle buster or their black water system product: Sew Clean at about the same. But then again, your money...
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02-13-2019 05:08 AM #49Senior Member
- Join Date
- Feb 2016
- Posts
- 251
Re: Master head won't drain
All the other heads drain fine? If not, a plugged vent line on the holding tank will certainly act like you describe. Good luck -
Matt
1976 58' YF, Hull #410
"Time Out West"
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Re: Master head won't drain
The other heads drain great.Has anyone just tapped into another heads drain line instead of pulling another 50' line?