JimK
08-04-2012, 10:42 AM
Quick background (see pool specs in sig): I have always used SWCG since pool was installed in 2004. Up until this season, I've always had to add a weekly dose of muriatic acid to keep the Ph "in range"; ie 7.4-7.6. I understand with a SWCG it's normal for the Ph to rise over time.
This season I remember reading somewhere in this forum to not worry about lowering Ph until it rises above 7.8 (previously I would lower it once it hit about 7.6). Well, once Ph rose to about 7.6-7.7 it stopped rising! It's been about 6 weeks since reaching that point and Ph has stayed absolutely stable!
Here's the latest numbers (using PF recommended Taylor kits):
Ph (or is it pH?:confused:) 7.6-7.7
FC 5.5
CC 0
TC 5.5
TA 100
CYA 80
Borates approx 60
Calcium Hardness 240
Salt 3100
SWCG set to 60%, pump on 14hrs a day during the daytime
I expected with the SWCG that Ph would continue to rise above 7.6/7.7 and I would have to lower it at some point, but this isn't happening.
Is this normal for a pool using a SWCG?
This season I remember reading somewhere in this forum to not worry about lowering Ph until it rises above 7.8 (previously I would lower it once it hit about 7.6). Well, once Ph rose to about 7.6-7.7 it stopped rising! It's been about 6 weeks since reaching that point and Ph has stayed absolutely stable!
Here's the latest numbers (using PF recommended Taylor kits):
Ph (or is it pH?:confused:) 7.6-7.7
FC 5.5
CC 0
TC 5.5
TA 100
CYA 80
Borates approx 60
Calcium Hardness 240
Salt 3100
SWCG set to 60%, pump on 14hrs a day during the daytime
I expected with the SWCG that Ph would continue to rise above 7.6/7.7 and I would have to lower it at some point, but this isn't happening.
Is this normal for a pool using a SWCG?