• ikidd@lemmy.world
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    3 months ago

    Oils in a septic tank are a poor idea. It floats, so it never gets pumped out as effluent, and it builds up in the tank. When you get the tank pumped, it should go away then as the pumper guy will usually stir it up enough to get all the oils and solids, but in the meantime it’s there interfering with the bugs.