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    What is this port above the waterline/return?

    Hopefully a quick question. Googled to no avail. It’s a threaded plug, removing it and bubbles appear in the return flow. So what is this thing’s purpose?
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    Replacing Filter (Please review my plan)

    I need to replace a decaying old DE filter that is probably undersized(see signature for pool details). I'm considering either Sand or DE (familiar with what goes into DE) and believe that I should replace all of the PVC Piping pictured as well. Plan to switch to a MPV at the same time. I plan...
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    Older Hayward Super pump humming not starting

    I have an older Super Pump(model C48K2N143B1) that hums on start up but won't pump and turns off from heat shortly after. Here's the troubleshooting I've done so far: Checked for debris, turbine spins freely Checked for obvious damage, none Replaced start capacitor... twice. 2nd one made sure...
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    Pool opening first time tfp method

    Hiya, Did some research and got the fancy test kit. Just opened the pool and came up zeroes for FC and CYA. Non cloudy for the CYA and added ~6 scoops and no pink for the FC. FC 0 CYA 0 PH 7 TA 75 I have granular CYA to add in the sock method based on the pool math suggestions but won't have...