Hi, I am actually not an RV owner (although I have thought about it as I am reaching retirement age!) but I wondered if someone could help me. I bought a house from someone who had an RV and there ...
I don't expect there is any way to easily determine what that is tied into unless you can see the bottom (which I am presuming you can't cause you are writing us who can't even see the hole). But, the chlorine in your hot tub will dissipate pretty quickly when left uncovered for a day or two.