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There is a lot of great information at https://www.poolspaforum.com/forum https://www.poolspaforum.com/forum and https://www.troublefreepool.com/forums/ https:/

There is a lot of great information at https://www.poolspaforum.com/forum https://www.poolspaforum.com/forum and https://www.troublefreepool.com/forums/ https://www.troublefreepool.com/forums/ particularly from user 'chem geek'. This is where I was able to finally get a better understanding of pool/spa chemistry and figure out a routine that works for me.

tempestn 8y ago
+1 for troublefreepool.com. Anyone with a pool or spa (hot tub) should read through their 'pool school' section, and then take any questions to the forums. (Probably don't even need to post; every imaginable question has already been asked and answered there.)