I'm new to the forum, and just getting my feet wet so to speak with TFP. I had suspected that my pool maintenance people were a little less than competent and the test kit proved me right. I have a happy and troublefree pool now - but there are a few things that I can't seem to figure out the best way how to clear up. My children get green hair with every swim - and I suspect I have high copper levels due to former pool guys aggressive treatment of an algae bloom prior to my ownership of the house. There are also blackish/brown stains all over the bottom and sides of the pool. I'm guessing that a copper algaecide was used - but have not confirmed through testing. I also have high CH levels due to a relatively high CH in the fill water. Former pool guy let the pH go up to over 8 and I have scale on just about everything. All other levels are great, pH, TA, FC, CC, salinity, and borates.
I've read a bit about using sequestering agents to remove copper stains from the plaster, but also understand that those agents usually require installing or using an existing heater bypass and that they do not remove the copper from the water.
There are three choices that I am considering and wanted to see if anyone had any experience with any of these:
1.) Drain and acid wash to clear up stains and remove CH from water
2.) Use sequestering agent to clear up stains and have the pool treated with a mobile reverse osmosis system afterwards to remove the metals and hardness
3.) Continue to use sequestering chemicals to keep copper in solution and just deal with the higher CH levels