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Posted: Fri Jun 03, 2011 8:38pm

Post Subject: Holding tank

Due to ill health I have not used my narrow boat for 3 years and my holding tank appears to have settled out.The waste is maserated beforepumping across.Is there an additive I can use to liquify the contents before pumping out.


Posted: Sat Jun 04, 2011 8:20am

Post Subject: Holding tank

Several of the additives that claim to use microbes and/or enzymes claim the liquefy all the waste but I have my doubts as to how well they will do it and how long it will take. I know at least one boater resorted to using a kitchen ladle to remove such waste. I suspect that if you have an inspection cover on the tank or if the inlet fitting is large enough you could make a wand out of pipe with a small jet type end fitted to a water hose may break the solids up enough to pump much of it out and give the additive a chance to work. I am trialling The New Blu Loo Company Bio Toilet Fluid at present and that certainly claims to break down all the waste. Tony Brooks

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