It's been awhile since I visited the forum. I have had great success following the recommendations here. Glad to see it's alive and well.

18,000 FG IG

My TDS got too high (could that be from using bleach (93% salt) all these years?) so had to drain a little more than half and truck in 10,000 gallons of water this morning.

My TA is high (210) on my first test. PH is 7.2. Should I wait for everything to settle down before adjusting. Or should I start lowering PH and begin aerating now? How do you calculate the amount of muriatic acid to lower .2?

Can you shock while adjusting PH (adding acid)?