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  1. C

    Calcium Hardness Levels for SWG, Fiberglass Pool

    Ok thank you! Just one thing to note, I didn’t need to actively fill the pool when I opened it. I have a mesh winter cover and it just so happened that the amount of rain water that came through made it so the pool was already at the right level.
  2. C

    Calcium Hardness Levels for SWG, Fiberglass Pool

    I'm opening up my pool for the season, and I have all my levels set, except for my calcium hardness. Current CH reading is 180. I've read varying theories on how important this level is. I have a SWG, fiberglass pool (Corinthian 14 - Latham Pool) and an electric heater. PoolMath is telling...