Hey all - 6 year pool owner but we just had the liner replaced in our 28' round. We filled with 6000 gallons of city water but that had to be trucked in to just set the liner in place. The rest was filled through our well (20300 gal total). Yesterday afternoon I started up the pump for the first time, filtering is done through an 18" sand filter. It cleared up the little bit of cloudiness in the pool throughout the night and I figured today would be a good day to start the chemical treatment. I'm planning on SLAMing the pool but wanted to make sure that this will help as the initial dose scared me.
I put in around 2.5 quarts of 12.5% bleach plus a little bit of ph reducer as it was reading high at 8.4+. My full testing kit has not arrived yet (TP-100) so I don't have full numbers yet. Chlorine went to 5-7 or so which is what I was expecting but suddenly and within minutes the water started turning green. A couple hours later now and the PH is still a little high and chlorine stayed about the same but the color intensified more. I can still see the bottom but it just went to straight green color through the water.
Our water does seem to contain a lot of iron, toilets and showers are stained and its almost undrinkable (taste only). The old liner even had some pockets where it stained brown and we couldn't get it out. Would this be the cause of the color? If it is do I need to worry about correcting this first and then worry about SLAMing the pool? Whats the best way to correct it?
Any help is greatly appreciated. I can normally balance everything out on start up within a week but I never started with fresh water like this. Pictures from yesterday and today included for reference. Ignore the wife, she wanted to jump in yesterday against all my advice..