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In-ground 24000 gallon pool Spa with spillover Water level 1 inch low but still plenty for skimmer ports Pump behavior the same whether pulling from all pool or all spa I cleaned and re-lubed the O-ring plus cleaned the cover plate and mating surface on pump housing Unusual in the last week: I...

I have a noisy check valve. The spring costs about $12 and the seat assembly is about $50. Which should I replace to quiet the noise? Thanks.

I installed a Pentair Tagelus filter (fiberglass body) last weekend. Before I tidy up the work area and replace the fence boards around the equipment pad, I was wondering if I should apply a finish to the filter exterior to protect it from the elements. Ideas? Experiences?

I'm replacing a sand filter and I want to do it right. I can get pea pebbles at Home Depot or Lowes but they are larger than the size specified by Pentair. I can order the right size from Leslies or other pool stores in town but delivery is two weeks. No place locally seems to stock it. I'm...

Next weekend I will install a Pentair Tagelus TA 100D sand filter. It requires 600 pounds of media. I plan to use a pea gravel base of 150 pounds and top that with 450 pounds of silica. Pool stores (Leslies and mom/pops) around town want $10-$12 for a 50 pound bag. Lowes charges $9 for a 100...

My spherical Jacuzzi TM31 sand filter srpung a leak and I need to replace it. Right now, Plast-Aid is holding the leak down but that won't last long. Is there any good reason to replace the TM31 with another sphere? That model is discontinued and the other spheres I have seen advertised are...

My Goldline PC-8 controller with T-Cell 15 works fine, i.e., no error messages, but free chlorine generation appears to cease if I drop the chlorinator percentage from 50 to 45. While at 50, my FC level holds at about 5 solid pink but if I change the controller to 45% the FC disappears in a day...

After putting in the 5th drop of R-0002 and shaking, the color barely registers on the border of 0.5-1 / 1-2. But, if I let it sit five minutes or so it darkens and get to the 2-4 / 3-6 range. Which is true - the immediate color or the later color? OTO always seems to validate the 2-4 / 3-6...

We just got this house with a pool about two weeks ago. I've learned so much from this forum. But backwashing has got me confused. I've read the web, YouTubed, Googled, etc. but none of those situations seem to fit mine - specifically, where does the dirty water exit? Would you please take a...