2012Coleman wrote:
Try the pool chlorine idea. Put some water in it and then dump a 1/2 gallon of it in there - that may be overkill as it only takes 2 gallons to shock my 15K+ gallon pool. It wont hurt the plastic. Then follow that standard procedure to sanitize the water system. Someone it seems, never drained the tank using the low point drain. How did you get the picture?
I have drained the tank many times, but the hole is only 3/8 inch, so this stuff won't drain out as is. Will the pool chemicals dissolve it? Previous owner may have used well water, I don't know.