trevskoda
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So does the blue stuff sold in camping shops, but bio wash tabs help septic tanks breakdown waste same as it works in the loo.As someone who has seen what happens when folks get this wrong; an impassioned plea! Whatever you use, please make sure that it's septic tank safe. Some laundry detergents (particularly bio ones) 'poison' septic tanks and it takes an expensive pump-out to put it right.