Thank you very much for the detailed reply! I will do the bath test as soon as I’m fully cleared up from this last episode. Probably about a week. You are right, it’s amazing to me that the water is clear given all the crap that has been poured into it over the years. I read the article about the tarp between layers of water when draining and understand it. That is likely the path if draining is undertaken.

I will let you know how it works out. Thanks again for the time you took to reply.