I am getting ready to winterize my pool here in northeast Ohio...ugh! I have approx. 30,000 gallons of salt water that has been trouble free thus far. My question is how do I calculate the amount of bleach to reach this shock level and more omporatnt how do I measure it my FAS-DPD shows a max of 5-10 cl?
I have read the great clsoing guide, but just cant get behind this one.
In addition, is there a way to get antifreeze down the main drain as I feel uncomfortable trusting the valving to seal water as a head pressure to hold down the water coming back up the return as winter dragssssssssss on here.