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I'm replacing a USQ 1152 on a Pentair Pinnacle PF-II. I have a couple of questions. First, the manual http://www.pentairpool.com/pdfs/PinnacleOM.pdf shows on page 9 that the ceramic polished face of the seat should be up. I got that part no problem. Then it shows the seal with "carbon polished...

My pool doesn't have what I think of as coping. Rather it has bullnose tile mounted as shown in the picture. Frankly, it sucks. Without an overhang, water splashes out with even moderate activity. Since you can see from the picture I have some work ahead, I'm wondering if there's a simple tile...

I just watched this video, where they claim that running your pump for three one-hour cycles a day is as effective as running 8 hours. They say this is according to a study conducted by the Florida Atlantic University. Does anybody know the particulars? It makes sense to me that intermittent...

One of the more minor issues I've run into with my short-sale pool is that the eyeballs are frozen in place. I can't move either the eyeball or the ring by hand pressure alone. Is it safe to grab the ring with a pair of channel locks or something similar, or is there something else I should try...

...and it looks like this: The flow comes from the filter at the right, and at the moment it's set to send all the water back to two eyeballs through the tube at the bottom. The tube at the top goes to a pair of jacuzzi jets behind the bench seat of the pool, and they draw air from a set of...

Okay, can someone explain this to me? I keep hearing that CYA takes a while to show up on the test. What does that mean, exactly? If the granules have dissolved, why wouldn't the impact show on the test as soon as it's been circulated? Are they simply referring to the fact that it takes a while...

My first question for the forum. Is it OK to run a filter without a cartridge in place to promote circulation in the early stages of a pool recovery? I've got a Clean and Clear 150, and lots of gunk in the bottom of a pool that I "inherited" when I bought this house. Because I've got things...