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    Fiberglass pool; possible oxidation; calcium - questions!

    We’re in our 3rd season with our fiberglass pool. Started following TFP method religiously mid-season last year. Recently our water level dropped a few inches due to evaporation, and I realized there was now a white coating on the exposed fiberglass surface when it’s dry. It’s not above the...
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    When to adjust alk & pH?

    Opened pool on Tuesday and am super excited for my first FULL season following the TFP method from open to close! (Transitioned over last year and will never look back.) I was so pleased with how clean the pool was upon opening, and SLAM was literally complete in 3 days! Super exciting! 🙌...
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    Can't get rid of CC, been slamming for days. Please help!

    I'm new to the TFP method this year and have been learning so much as I go. I messed up last week and have definitely learned my lesson, but at this point, I need HELP! Against my better judgement and the advice I'd gotten here, I had continued to use frog bac pac chlorinator cartridges...
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    Pentair robot rebate

    I keep trying to submit a rebate request on Pentair’s website (recently purchased the Warrior SI from Marina) & every time I get to the final page and click submit, it just goes to a blank page and won’t give me any kind of confirmation. anyone else have this problem? It definitely is not going...
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    Been slamming for a week now...

    Opened the pool a week ago now, but haven’t been able to consistently maintain slam level FC. As I posted about a few days ago, I will continuously add chlorine according to the Pool Math recommended amount, but it will usually take multiple additions before I can get it back above slam level...
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    Keeping adding chlorine according to Pool Math but can't reach SLAM level

    Hi all. Opened pool and started SLAM on Tuesday. Pool company added too much chlorine, so we were above my SLAM level (20) until last night (Friday). It had dropped to 17.5 by last night, so I started adding 73% Cal-Hypo according to the amount that Pool Math said. It was up to 18 this morning...
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    Do you turn off your pool pump while running robot?

    Subject line says it all. I feel so dumb for asking, but I couldn't find anything about it when I read the manual (Warrior SI) other than the troubleshooting page at the end, which mentioned a potential cause of one problem being that "pool filter and pump is on." If I hadn't read that, it would...
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    White streaks (pic included)

    Ever since having our fiberglass pool installed last summer, we've had these white streaks that come down from the white strip that is just under our coping (see pic). They definitely won't rub off by hand or chip/flake off whatsoever. I've also unsuccessfully tried a magic eraser. Our pool...
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    First time opening - need lots of guidance!

    Hi! I’ve been browsing the forums for the past few weeks, have read the ABCs article, and am sold on working towards becoming a TFP expert! But- so much to learn... and definitely wish I’d done my homework & found this page back before we put in our pool last summer (we are now stuck with frog...
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    Slippery surface in fiberglass pool

    We are heading into our second season as in-ground fiberglass pool owners. Last summer we had issues with people constantly slipping on the steps & tanning deck. The pool manufacturer (SwimUSA) recommended that we use surfboard wax on these areas before opening the pool this season. Has anyone...
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    So many Dolphin models...

    Heading into our 2nd season as in-ground fiberglass pool owners and we’re ready to invest in a robotic cleaner. My husband suggested getting the Dolphin Nautilus CC Plus which he found online for $829 (w/ the caddy), but he didn’t do much research...lo & behold, I just discovered there are about...