I just switched from Trichlor Tabs in a floater to 8.25% bleach. The reason I switched was due to increasing CYA numbers from the tabs. Our pool is crystal clear but want to ensure I am not doing anything incorrectly seeing our CYA is now just over 100. I figured that switching out the tabs for bleach and enforcing splash-out should eventually lower the number a bit without requiring draining?
If draining out some water is required, could I turn my pump to only use the in-floor drain and use the spigot built into the pump to drain out the water? Is that what that spigot is for?
Any assistance would be awesome and thanks ahead of time!!
My test results from tonight:
FC - 3.23
pH - 7.4
TA - 109
CH - 87 <-- is this bad? Our pool was filled using water mostly from a soft water tank. It start out at 34 about 2 months ago.
CYA - 107