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    Draining Fiberglass Pool to Fix Main Drain Leak

    I have a 4,240 gallon San Juan Cyberlane with Spillover Spa (W 8’6” – L 23’ – D 4’9”) pool with a main drain leak which is on the outside of the main drain, as shown in the picture. This leak detection was done by a professional leak detection company. It’s nearly impossible to find someone who...
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    Two Different pH Test Blocks, Two Different Readings

    I had been using the pH test block that came with the TF Testkit but ended up getting a Taylor test block. I wanted to compare the results between the two thinking they would be identical. In the pic attached I would read the Taylor block at 7.2, whereas in the TF test block more like 7.8. I...
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    Leak in Pool, Will be away for Six Weeks, What to Do?

    I just had a leak detection company out and found that one of the returns is leaking. It seems to be about 3/4 inch a day. Another problem is that upon startup of the pump in the morning it sucks in air, which I relieve from the filter on a daily basis. I'm having difficulty finding someone...
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    AA Treatment and Polyquat 60

    I will be doing an AA treatment this Winter to lift some iron staining. Having a look through "further reading" on an AA treatment it mentions that "You can add Polyquat 60 to the water before starting the stain treatment". I would prefer to keep unnecessary chemicals out of the pool. Is this...
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    Chlorine Loss Due to Algae, SWG, low CYA or ???

    I recently had a warranty replacement on my SWG cell. The water is crystal clear, zero CC but lost about 1 FC in an OCLT test. Previously I had the SWG set to 30% but with the new unit it is currently set to 70% and barely keeping up. When checking my CYA it was low at 50 (target is 70) but...
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    Jandy Aquapure Model PLC700 vs. R0452300

    I have been using a Jandy Aquapure PLC700 which just died after 18 months (The dreaded 120/121 error code). The installer just replaced it with the warranty unit that has a model number of R0452300. As best I can tell it is the same exact cell but it has a different model number. It seems...
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    Should I Have a Check Valve Between the SWG and Heater?

    Not sure if this should be in the "Pumps, Filters, and Plumbing" forum but thought it more appropriate here. I recently purchased a pool (it came with a house too!) that doesn't have a check valve between the SWG and heater. I was under the impression that one should always have a check valve...
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    Getting Started Using the TF-100 Test Kit - My Experience

    When I received the TF-100 (salt) test kit it seemed a bit overwhelming with the various chems so wanted to share my experience and thoughts, having used it for the first time today. It all really does make sense. In my opinion the instructions can be written a little differently, but I am a...