I am considering replacing my pool water, and since my pool is fiberglass, it must be filled with water at all times. I have heard about the "sheet method" for replacing pool water w/o draining the pool. I understand the basic concept, but I would like some clarification on the details.
Should I drain to just below skimmer level before putting on the plastic sheet and adding the fresh fill water?
I assume the sheet should be slightly larger than the pool surface area. Any specific suggestions on that?
Should I start adding chlorine as the new fill water goes in, or wait till the fill is complete? I expect the process will take several days, and obviously the filter won't be running.