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    Pool Math LC Addition Calculation Incorrect

    Hey all. Unsure what to do here. I am using 12.5% Blue Whale liquid chlorine (from Leslie's). I checked the box, and the manufacturer date is very recent (sometime in mid February 2025), and I store it in a dark closet, so I doubt degradation is an issue. When calculating on pool math to raise...
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    Is a SWG worth it?

    We're going to be planning a pretty big pool renovation and update soon, and are curious if it's worth adding a SWG? Here's our situation...We already need to add a second drain (split our current single drain), update our electric, update automation, replace spa jet system, replace pool and spa...
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    Draining attached spa

    Hi! This is probably a beginners question so my apologies. I need to reduce the water level in my attached spa to access the jets to change them. I'm attaching photos of my plumbing. Do I just switch the drain from pool to spa mode, but not switch the returns? So it displaces the spa water to...
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    Pentair Mastertemp 250 HLS recurring issues

    Last November, at the beginning of "hot tub season," we went to go fire up our heater and the service light came on. Pool repair company found that the high limit switch had failed/went bad, so they replaced it. Heater was working great all season, no additional issues. A couple months later...
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    Lowering water level affecting prime?

    Hello! We have lived at our home with our pool for a little over a year. I have successfully backwashed our filter a few times without issue. Today we had to drain water for the first time (multi-port set to "waste", using a backwash hose) due to a significant amount of rainfall nearly...
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    What surface to go with??

    Hello all! We purchased our home with this beautiful pool about a year ago. We absolutely love it! And it is going to be time to do some renovations on it in the coming year or so. It was built in 1994. The previous owners bought the home around 2008ish. The only updates they did was a filter...
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    Tablets not dissolving in chlorinator?

    Since I took over pool care last August (had a pool company for 3 months when we first bought our home), I completely stopped using chlorine pucks due to high CYA (70 at the time) and switched to liquid chlorine. Now my CYA needs to be raised (currently 30), and the previous owner left me A HUGE...
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    First time backwashing, did I do it right?

    Hello! I'm a new pool owner of a previously built in ground pool, ~17000 gallons. For the first 2 months we lived in the home, I hired a pool company to help take care of the chemicals and equipment so we could settle in. They cleaned our Hayward DE filter at the end of May/early June. They have...