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Old 12-31-2014, 07:45 AM   #1
FF's Avatar
Join Date: Oct 2007
Posts: 14,908
Chemist wanted

Here in FL the water is usually hard , and has lots of problems.

>Better living thru chemistry < so there are dozens of products to help keep sinks , toilets, dishwashers and washing machines looking/working OK.

Folks keep writing on how plugged up their waste hose needs replacing , due to deposits. UGH!!!

Seems like there should be big boat bucks (with the usual Yacht 1,000% markup) for anyone that can solve the problem eith a bottle of goop.

For a new build installing a std RV toilet on top of the waste holding tank is the simple solution.

Only problem would be with the NA who is unfamiliar with the concept.

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Old 12-31-2014, 07:47 AM   #2
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Old 12-31-2014, 08:53 AM   #3
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City: Essex, Ct
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Vessel Name: Bella
Vessel Model: Mainship Pilot 34
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It isn't easy to solve it completely, but there are some things that you can do to minimize it. A simple periodic vinegar flush isn't going to do much.

Peggie Hall who owned a marine sanitation company and wrote a book on the subject says that flushing extensively after each use is the best way. Uric acid in urine reacts with calcium and magnesium in sea water and causes a white substance to precipitate out. Those white crystals combine with, you know what to form the scale on the insides of the hose. Flushing completely moves the problem to the waste tank, not the hoses.

Of course your holding tank fills up faster.

Removing the scale with chemicals, even strong hydrochloric acid is tough. You are better off removing the hose, replacing it or beating it against a tree trunk to break up the scale.

And even though I am not a chemist, I am a retired chemical engineer, so close.

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