Okay, last year we put a canister of Ascorbic Acid (Stain Free or something?) and the stain was gone completely in 30 minutes. Did not use sequestrant so it returned eventually.
This year we were going to do it properly. Bought bulk ascorbic acid and Jack's Purple Stuff and other chemicals needed to maintain.
Brought chlorine down to 0 and PH to 7.2 and began Ascorbic Acid treatment one week ago!
Our inground fiberglass pool is about 8800 gal. and I used about 3/4 lb AA with filter in circulate. The stain was not completely gone after 1/2 hour so I repeated process, still not gone so I repeated twice more for like 3 lbs or better of AA. Ran for 24 hours and stain finally disappeared. Added a full bottle of Jack's.
Started trying to bring up chlorine with 6% Bleach and I still cannot hold chlorine. I turned the IC40 SWG gen all the way up and that still isn't holding.
I got desperate, fearing an algae breakout or something and threw a bag of shock in yesterday evening. Now my stain has returned and the chlorine is again back to zero with the swg set at 80%. Why is my chlorine still dissipating so quickly???
To top it off my Calcium hardness tested low for 3 days at 120 so I added 195oz of Calcium Chloride per the pool math calculator 2 days ago and today it is at 425 which means a whopping 30% water change.
I don't know what to do........Here are tonights numbers: HELP PLEASE and THANK YOU!!!!
Temp 84
FC 0.5 (next try was 0)
CC 0.5
PH 7.5
TA 90
CH 425
Salt 4050
CYA 60
This year we were going to do it properly. Bought bulk ascorbic acid and Jack's Purple Stuff and other chemicals needed to maintain.
Brought chlorine down to 0 and PH to 7.2 and began Ascorbic Acid treatment one week ago!
Our inground fiberglass pool is about 8800 gal. and I used about 3/4 lb AA with filter in circulate. The stain was not completely gone after 1/2 hour so I repeated process, still not gone so I repeated twice more for like 3 lbs or better of AA. Ran for 24 hours and stain finally disappeared. Added a full bottle of Jack's.
Started trying to bring up chlorine with 6% Bleach and I still cannot hold chlorine. I turned the IC40 SWG gen all the way up and that still isn't holding.
I got desperate, fearing an algae breakout or something and threw a bag of shock in yesterday evening. Now my stain has returned and the chlorine is again back to zero with the swg set at 80%. Why is my chlorine still dissipating so quickly???
To top it off my Calcium hardness tested low for 3 days at 120 so I added 195oz of Calcium Chloride per the pool math calculator 2 days ago and today it is at 425 which means a whopping 30% water change.
I don't know what to do........Here are tonights numbers: HELP PLEASE and THANK YOU!!!!
Temp 84
FC 0.5 (next try was 0)
CC 0.5
PH 7.5
TA 90
CH 425
Salt 4050
CYA 60