Hello braintrust,
I'm close to opening the pool for the season and my chemistry is nearly perfect except my CSI is lower than I'd like and maybe I need a reality check from someone more experienced.
FC - 4.5
pH - 7.7
TA - 60
CH - 275
CYA - 60
Salt - 3000
Borates - 48
Temp - 71°
CSI - (-.57)
My fill water is very hard and will likely push my CH up by 50 to 75 over the course of the swim season. I lowered my TA down to 70 from about 90. I think with rain water this year it got pushed down even lower.
CSI has been lower than the recommended -.6 for quite a bit of the winter. Even with warmer temps, I'm going to be closer to -.4. I'm worried about damaging my pool or my equipment.
My calculations told me that getting my TA up to about 70 will get me closer to where I need to be. I added 1lb of sodium bicarb today which should bring me up up 64ish and will retest soon but it got me thinking: maybe my CSI isn't that bad? Should I leave it alone and let it drift up a bit over the season? I think even with the additional Calcium from my fill water I'll be just under -.3 with the warmer temps.
Thoughts?
I'm close to opening the pool for the season and my chemistry is nearly perfect except my CSI is lower than I'd like and maybe I need a reality check from someone more experienced.
FC - 4.5
pH - 7.7
TA - 60
CH - 275
CYA - 60
Salt - 3000
Borates - 48
Temp - 71°
CSI - (-.57)
My fill water is very hard and will likely push my CH up by 50 to 75 over the course of the swim season. I lowered my TA down to 70 from about 90. I think with rain water this year it got pushed down even lower.
CSI has been lower than the recommended -.6 for quite a bit of the winter. Even with warmer temps, I'm going to be closer to -.4. I'm worried about damaging my pool or my equipment.
My calculations told me that getting my TA up to about 70 will get me closer to where I need to be. I added 1lb of sodium bicarb today which should bring me up up 64ish and will retest soon but it got me thinking: maybe my CSI isn't that bad? Should I leave it alone and let it drift up a bit over the season? I think even with the additional Calcium from my fill water I'll be just under -.3 with the warmer temps.
Thoughts?