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Old 24-01-2020, 15:08   #31
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Re: Urine trouble now: scale from seawater and urine...

Quote:
Originally Posted by JPA Cate View Post
@SailorBoy1:

You're probably right about the muriatic acid being cheaper, even here, but it is much easier for us to use vinegar, which I use for other cleaning, as well. Would you say 1 capful per flush should neutralize even strongly alkaline urine? I really like the idea of doing it, that way, rather than treating the hoses afterward. I think it's brilliant!

Thanks again for the help.
Impossible to say, but a capful will go a long way to dropping the pH down to a low enough level to at least help
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Old 24-01-2020, 15:17   #32
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Re: Urine trouble now: scale from seawater and urine...

Agree: surprisingly you will get build up even with freshwater (though not as quickly). Here you can see the build up of Urinary Struvite in my Vacuflush S series pump after light use for 10+ yrs. Most folk's urine is alkaline and, even using freshwater exclusively, this stuff is rock hard and took several hours/batches of Muriatic acid to dissolve. Naturally my hoses, holding tank, tank monitor sensors were all encased also. Now I regularly add some mild acid weekly per Peggy's recommendation.
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Old 24-01-2020, 16:28   #33
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Re: Urine trouble now: scale from seawater and urine...

We’ve been using the Sew Clean product in our two heads since last year. Yes, it’s pricey but it’s worked very well for us. Two treatments per 7 month sailing season keeps the lines clear and the toilets flushing. This is after lots of clogging in previous years. Highly recommend.
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Old 24-01-2020, 17:00   #34
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Re: Urine trouble now: scale from seawater and urine...

SailorBoy1, thank you very much for the help.

Ann
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