I just bought a house with a inground pebble pool. The salt content in the water is so high, that my concrete deck coating around the pool is de-laminating. I was told to drain the pool and refill. Its 110 F in AZ right now, 80 F at night. Others told me not to drain pool in summer as pebble surface will crack.
My question. Using a submersible pump, can I drain water from the bottom of pool at the same time I am adding new water to the top. Will that work?