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Hello, Would it be good insurance to use a phosphate remover in addition to poly 60 before doing an ascorbic acid treatment to prevent algae while no chlorine is present during AA treatment? I regularly use HEDP sequestrant so guessing phosphates are relatively high. If a good idea, is there...

Hello, My 3/4 HP Hayward Northstar circulation pump motor is dead. I've decided on VS to replace instead of dual speed since my marginal electric rate is $.32+ kWh most months. I've spent a good deal of time using mas985 spreadsheets to evaluate pumps and narrowed to three above in addition to...

Hello, My 3/4 HP Hayward Northstar circulation pump motor has gone kaput. I've researched variable speed, single speed, and 2 speed replacement options but have only succeeded in becoming confused. Have no real preference for either type. Looking for overall most cost effective solution. Hoping...

I've learned much from this forum the last couple years but never had reason to post until now... I have an inground pool/spa combo with elevated spa. Overnight, without the pump running, the spa drains to the pool water level. With the pump off for 36 hrs the spa water level never goes below...