Most boats have just one holding tank
Steve said:Is that why some boaters just empty all their waste into the waterways?
JamesOne said:Can someone tell me a situation where a grey tank can be legally emptied and the black tank cannot?
JamesOne said:Why do RVs have a black and a grey tank? Most boats have just one holding tank. Is there some government regulation requiring the separate tanks in an RV?
Jeff Cousins said:James:
There are still parts of the US that allow settling pits for grey water at some campgrounds. These are for dishwater only.
buckle823 said:Short of pouring dishwater from a sink liner down the toilet, there is no easy way to take advantage of the extra space in the black water tank.
some simple conservation practices will stretch your water supply and holding tankage a long way