This is one of those scenarios where knowing your pool info and location would help tremendously as your signature and profile are blank. Knowing those two items can dictate how much water to exchange safely, not to mention expectation with the new (local) water.
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Pool Care Basics Archives
Your one-stop shop for all things TFP to include: ABCs of Water Chemistry, Recommended Chemicals/Levels, Test Kits, Troubleshooting, and much more!
It's been fairly dry in S.A. our area, but if you suspect saturated soil you might only drain about 60 - 70% at once to be safe to prevent shell shifting or pop-out. Local water is a bit hard, so the CH will be what it is once full. But after that, take advantage of any heavy rains in the forecast. As your CH approaches the 600+ mark, it's even more critical to monitor the pH and keep it a little lower in the summer to effectively manage your "CSI" which in our PoolMath APP determines the propensity for a pool to develop scale. But if you have any questions after refill, be sure to let us know.
