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I would like to change from a sand filter to a diatomaceous earth filter and would appreciate any and all help you can provide. Here are some details. Pool: 40,000 gal in-ground gun-nite, white plaster, free-form Current Filter: Baker Hydro HRV36 (500 lb sand capacity) Pump: 2.5hp Hayward...

To say "confused" is an understatement. Reading a ton of messages pertaining to this subject, as well as trying to correlate the answers with my own experiences over the past 20 years, I arrived at an impasse. The information at the Chemical forum seem to augment my suspicion, that the high...