Jennifer

We have City water, not well water. We use In The Swim brand chlorine & shock. I've had three pools in my life, but this is the first fiberglass pool. Three times this first season, we've had what our installer calls 'metal stains'. He said our chemicals are causing this. We got a ton of rain over the weekend, and now the pool looks all stainy on the bottom again. Does anyone have some advice to share on how to KEEP THE STAINS FROM COMING BACK? We have been using the 2-part metal out removal products, which work fantastic, and my husband thoroughly cleans the filter cartridge after treatment. So why would the stains keep coming back? It's very frustrating!!