Hydrotools Cover Saver Non-electric Cover Pump YGroup_Signature-RTL Low total alkalinity can cause

Low total alkalinity can cause PH levels to fluctuate excessively

Hayward Genuine Replacement Cartridges are the only replacement cartridges that will maintain the original filter fit and performance in addition to providing the best overall value

extended filtration cycles

Inside Plate Measurements: 5 1/2 " Tall x 5 3/4" Wide

avoiding adding any other unnecessary chemicals into your pool water

Hydrotools Cover Saver Non-electric Cover Pump YGroup_Signature-RTL Low total alkalinity can causeCover Saver non electric siphon action cover drain keeps pool cover cleaner and drier. Includes drain, siphon pump and 13 ft. hose. Simply place the drain on top of your pool cover and squeeze the siphon pump until water begins to flow, water flow will stop when the cover is drained. No electricity is needed.