Is old grey water legally grey water always even when old?Sink water is often considered black.
Unine without feces IS considered grey water.
However, (typical) grey water left for just a few days will turn into black water due to growth.
Adding Urine into the mix just feels like asking for trouble.
My understanding is that bathroom sink is Grey water and kitchen sink is sometimes considered black.
I plan to have strainers on all sinks so that the waste tanks never have large solids. That way the drains are always liquid only. I would like to carry just a garden hose for dumping with a small booster pump. That way I can dump fast and easily.
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