Re: Upgrade recommendations for replacing 14" Intex sand filter combo?
I did know that relating the HP rating of centrifugal pumps to actual performance is kinda like voodoo. Performance depends on how the pump is designed, intended flow and pressures, and on and on. And none of them are tested, rated and reported the same way. As far as availability, the Hayward S180T 18" filter is available today from Amazon, as is the Hayward SP1750 .5 HP pump. I also am in possession of an Intex pump that is rated at .75 HP, 4.8 A and 35 GPM (depending on which Intex source you look at). All the Hayward stuff should be plenty serviceable, shouldn't it? If a 1HP variable pump works on a 21" filter, would a .5 or .75 HP not work with the 18"? I'm almost kinda sorta nearly leaning toward hooking the 18" filter up to my Intex pump, and seeing how it works. Then deciding if I can go smaller, need to stay about the same, or go bigger and throttle. But then, a complete system is cleaner, much more convenient and less expensive - equipment wise - in the long run.
Intex 15ftx4ft 4500 gal. 3/4 HP Pentair WhisperFlo pump. Hayward 21" sand filter. Taylor K-2006 & K-1106 kits. PF=27
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