So I am attempting to convert to the BBB method with my pool. The previous owners used trichlor so the CYA is measuring over 100(about 60 with the 1/2 pool 1/2 tap technique). I guess I will go ahead and do a partial drain/refill and I am looking for suggestions on how. I do have an L shaped pool so I was considering putting the hose in the shallow end and draining exclusive from the bottom drain in the deep end.
Question- will the new water sit on top of the old water or does it depend on the temperature of each? Should I get my chlorine real high and stop the water circulation to attempt this? Is there a better suggestion in general?