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I will be trying to close myself for the first time this year. My pool has two skimmers; one of the skimmers is apparently an "old style anthony skimmer." The skimmer is connected to the main drain, and I can rotate a plastic valve piece to adjust the amount that is pulled from the main drain...

I don't understand the CSI calculation. Everything I have read suggests that if you maintain your other levels, CSI will be fine. But when I type in the following parameters on PoolMath, it suggests the CSI will be -0.76: 24000 Galllons, SWG FC - 4 pH - 7.2 TA - 80 ppm CH - 350 ppm CYA - 75...

I am in the process of opening the pool and conducting a SLAM. I have been surprised by the high chlorine use, especially since the water is just somewhat cloudy -- it is not green. I have gone through 9 gallon-sized jugs of 10% bleach in the past 7 hours. Is that surprising? Or par for the...

Whenever I hook up the vacuum, the pump loses prime and suction is extremely low. I've hooked up the vacuum hose to a skimmer basket and plugged off the other skimmer to maximize suction. I've ensured the hose is completely filled with water when hooked in to the skimmer basket. The pump will...

I had an SWG added to my pool prior to opening. I am planning on opening this coming weekend. I plan on getting the water in shape before starting up the SWG, but want to make sure I address the water parameters in the correct order. Based on the pool school article "Water Balance for...

Any recommendations on when to open a pool in Northern Virginia? I don't expect it will be warm enough to use the pool until mid-to late May, but there may be advantages to opening early so as to prevent the water from getting worse (I have a mesh cover, no heater). If I put off opening...

Hi All, My pool equipment/plumbing includes a narrow, semi=flexible hose that runs from the output of the pump to the booster pump for the Polaris cleaner. For some reason, it has two holes in either end that I'm guessing were caused when my pool company closed the pool -- although I'm not sure...

Hi all -- Any concern with using this product as a source of Calcium Chloride for a pool: 50 lb. Excel Calcium Chloride Ice Melt-50B-CCP-50 - The Home Depot

Hi All -- Bought a house with a pool last summer and had the pool company continue to maintain as we figured things out in 2017. I am transitioning to self maintenance based on the method taught on this website for 2018. I am adding an SWG this spring before opening, and am currently in the...