The well water was first, just a few inches to hold down the liner, then two loads of water were added Thursday the 17th and the final load was Friday the 18th. Then the rain came yesterday during the last water fill and twice again before this morning. I noticed the cloudiness and green cast Friday morning. There is a little chlorine in the city water but I didn't get the pump and filter together and running until late Friday afternoon, then we had the monsoon so I didn't add chlorine until this morning. Make any sense?