Water replacement strategy to lower CYA

rack04

Active member
Jul 2, 2023
31
Plano, Texas
Pool Size
28000
Surface
Plaster
Chlorine
Liquid Chlorine
Took over the pool from the previous owner and now that the weather is getting a little bit cooler I want to look at water replacement options to reduce my CYA, currently at 120. I can either purchase/rent a submersible pump, use backwash to waste through my DE filter, or fill and use to overflow for a no drain approach. Thoughts on the best route to take?
 
This 1.6 HP monster is under $100 and if you cut the output attachment accordingly, will accept a 1 inch (good) or 1.5 inch backwash hose (better).

Every pool owner should own a good submersible pump. They're kinda like shop vacs. You don't need them until you do, and they're worth their weight in gold when push comes to shove.

A larger pump is appreciated at those times with considerably less time twiddling your thumbs waiting.
 
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