- Feb 6, 2018
- 184
- Pool Size
- 21000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
Chemistry as of yesterday with Taylor 2006:
pH= 7.2
FC= 3.5
CC= 0.0
TA= 60
CYA=around 60-65
Calcium = 180
Clear water, CC of 0.0 BUT a few times in the past 2 weeks found algae growing on the wall which I immediately brushed. I didn't perform the overnight test due to process of elimination.
Pool has been scrubbed, skimmed and vacuumed.
When I put all the numbers in pool math to for a FC target of 28 with a 25,000 gallon pool, I get 5 bottles of 1 gallon 12.5% liquid shock (which I confirmed on the label) which I added. 2 hours after add, FC is only 17.5ppm! 3 hours after add (10pm, dark out), same thing. Then, first thing this morning at 5:30am (still dark), I get 17.0ppm! I'm measuring exactly 10 ml, using a speed stir, 3 level scoops of powder and adding drops greater than 1 drop per second.
Any ideas what could be going on? Thanks!!!!!
pH= 7.2
FC= 3.5
CC= 0.0
TA= 60
CYA=around 60-65
Calcium = 180
Clear water, CC of 0.0 BUT a few times in the past 2 weeks found algae growing on the wall which I immediately brushed. I didn't perform the overnight test due to process of elimination.
Pool has been scrubbed, skimmed and vacuumed.
When I put all the numbers in pool math to for a FC target of 28 with a 25,000 gallon pool, I get 5 bottles of 1 gallon 12.5% liquid shock (which I confirmed on the label) which I added. 2 hours after add, FC is only 17.5ppm! 3 hours after add (10pm, dark out), same thing. Then, first thing this morning at 5:30am (still dark), I get 17.0ppm! I'm measuring exactly 10 ml, using a speed stir, 3 level scoops of powder and adding drops greater than 1 drop per second.
Any ideas what could be going on? Thanks!!!!!