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I am coming off a SLAM for over a week for mustard algae. FC 15 CC 0 OCLT 0 pH 7.5 TA 70 CH 400 CYA 80 Temp 56F Salt 3300 csi calculates at -0.57 Based on my pool type and TFP recommended levels, the chemistry looks good considering a long SLAM. My Question is why is the csi at the lower...

I developed mustard algae after returning from vacation and ignoring my pool. SLAM started 5 days ago, brushed everything, pool tools soaking in the pool, robot working overtime and hand vacuuming. Initial FC 44 ppm. SWG off. FC has been at 36 last 2 days. CC 0. OCLT no loss over night. Today...

My pool chemistry is near perfect. However, at night with the lights on I notice considerable suspended particulate matter. Is this normal? These are not air bubbles. I have a picture but do not know how to attach it. Your thoughts are appreciated. Thank you, Mark

New to plaster pool care. Nylon vs stainless bristle steel pool brush....which should I use? Is one better than the other for a specific purpose? Thanks M

Because I have an ozone system can I have a lower FC? Does the TFP SWG calculations for pool chemistry take this into factor?

I have a new 18,000gal, IG, plaster pool, spa with spill over, ozone system, SWG, Cartridge filter, Hayward system control, 2 speed pump (6 hours low speed and 4 hours high speed middle of the day, chlorinator set at 50%. Initial fill February 16, 2018. The builder added salt the first week...