Water CH is >600 along with black algae

[jsteggy]

so the CH has been climbing steadily the last few years, other issues I'm dealing with - black algae too. last year after the rains there was an inflow of mud into the pool. a lot of mud. it took me a while to clean it ( I procrastinated). I also made some poor decisions on chemicals - using dry chlorine instead of liquid. I din't realize dry increases CH. So here I am. CH > 600. What's the impact if I leave it as is?

Thanks

 

[PoolStored]

Can you post a full set of test results, along with your CSI if you know it? This will help us...