My pool looks great other than leaves that are still dropping from the tree behind it. I opened it last week. At first, it was clear but had some grey muck on the liner and a few leaves that had fallen in over the winter. I shocked it at night with 5 gallons of liquid chlorine (12.5%) and the next day it was clear and blue. Maybe 5gals was overkill, but I was concerned about the grey on my liner.
2 days later I had the pool store test my water. (I'm getting a TF-100 & smart stir soon). My first test results were 0 CYA, 40 alkalinity, 7.2 pH, 0 calcium, and 0 total/tree Chlorine. I realize the chlorine burnt off because the CYA was too low. I back-washed and then slowly added 3lbs of stabilizer to the skimmer (will use a sock going forward) to boost my CYA. Then I added around 64oz of LC (12.5%) last night based on the Pool Math advice (cool app). The filter has been running and I'm bubbling the return to raise the pH. I put in around 1lb of washing soda this morning to raise my PH and Alkalinity. I don't think I need to worry about the calcium.
I'm going back today to get new numbers from the store. I'm shooting for 3 FC, 7.6pH, 70 TA, 0 CH, & 30/40 CYA.
Anyway, to make a long story longer, I've found in the past that my FC will often go to 0 the day after I've added a maintenance dose (~64oz). Is this normal/safe? I heard it's very bad and maybe unsafe to let it get to 0. The pool store keeps pushing tablets to prevent the 0 FC reading and telling me that liquid chlorine will wreck my liner. However, as long as I'm slowly topping it off each night (with recommendations from Pool Math), should I be concerned at all if my FC tests at 0 by the middle of the next day? Is it normal?
Thanks in advance,
Dave
2 days later I had the pool store test my water. (I'm getting a TF-100 & smart stir soon). My first test results were 0 CYA, 40 alkalinity, 7.2 pH, 0 calcium, and 0 total/tree Chlorine. I realize the chlorine burnt off because the CYA was too low. I back-washed and then slowly added 3lbs of stabilizer to the skimmer (will use a sock going forward) to boost my CYA. Then I added around 64oz of LC (12.5%) last night based on the Pool Math advice (cool app). The filter has been running and I'm bubbling the return to raise the pH. I put in around 1lb of washing soda this morning to raise my PH and Alkalinity. I don't think I need to worry about the calcium.
I'm going back today to get new numbers from the store. I'm shooting for 3 FC, 7.6pH, 70 TA, 0 CH, & 30/40 CYA.
Anyway, to make a long story longer, I've found in the past that my FC will often go to 0 the day after I've added a maintenance dose (~64oz). Is this normal/safe? I heard it's very bad and maybe unsafe to let it get to 0. The pool store keeps pushing tablets to prevent the 0 FC reading and telling me that liquid chlorine will wreck my liner. However, as long as I'm slowly topping it off each night (with recommendations from Pool Math), should I be concerned at all if my FC tests at 0 by the middle of the next day? Is it normal?
Thanks in advance,
Dave