mikemelson Posted June 13, 2011 Share Posted June 13, 2011 Hi, I have a Thetford C2 with the separate flush tank, I use Thetford pink additive in this tank. I have been getting black specks in the water when flushing the loo, but it's getting worse, in fact, if not used for a few days the water comes out totally black at first. Anyone out there know what causes this problem and what's the cure? There is a black rubber hose that connects to the glass tube which acts as the level gauge, could this be breaking up? Suggestions will greatly appreciated. Thanks, Mike. Link to comment Share on other sites More sharing options...
Robinhood Posted June 13, 2011 Share Posted June 13, 2011 It's a common problem, and has been discussed on here recently. See: http://www.outandaboutlive.co.uk/forums/forums/thread-view.asp?tid=22899&posts=5 and: http://www.outandaboutlive.co.uk/forums/forums/thread-view.asp?tid=22137&posts=22 Link to comment Share on other sites More sharing options...
BGD Posted June 13, 2011 Share Posted June 13, 2011 This is what we did: Drain tank. Throw away all bottles of rubbish and uber-expensive Theford "pink" stuff. Refill tank with fresh water Add some cheapo automatic washing machine liquid instead...choose your preferred fragrance at Lidl/Aldi. Save loads of dosh, works a treat, and no more black bits :-D Link to comment Share on other sites More sharing options...
fjmike Posted June 13, 2011 Share Posted June 13, 2011 Just to add a footnote to BGD's post don't go too mad with the bio washing liquid, a little goes a long way, too much will create bubles and will be difficult to pump through (bubbles don't rinse very well) Link to comment Share on other sites More sharing options...
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