Water Chemistry after SWG Conversion

djpool21

Gold Supporter
May 7, 2021
161
Raleigh NC
Pool Size
27040
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
SWG conversion is complete and Intellichlor IC60 has been powered up for about 42 hours and generating chlorine at 10% for 18 hours. Pump running at 32 GPM 24 x 7. So my water chemistry is a little off now and wondering what my next steps should be. Salt level is higher than what we planned and CYA is low for SWG. We took in account salt level of 800 before conversion and Pool Math showed about 3300 for adding 14 bags of salt. PH is lower than typical 7.7 as we were on vacation and using tabs to increase CYA. No tabs now. And it's heavy pollen season here.

FC - 5.5
CC - 0
PH - 7.6
TA - 90
CH - 330
CYA - 50 (rounded up)
Salt - 3800 (K-1766), ScreenLogic shows 3500
Water Temp - 60 degrees
CSI - -0.33

I ordered CYA and plan to increase it later this week using the sock & return method. What else should I address and in what order? Is the salt level OK and let it go down normally with rain, drain, fill, and/or backwash? How accurate is the Intellichlor salt reading vs the K-1766? Thanks!
 
All looks great. I would not do a thing right now. Salt level is fine.

I would wait to add CYA until summer is closer. Say mid May.

The IC salinity is +/-500 ppm at best.
 
Thanks, great to know my chemistry is looking good! And I like your suggestion about waiting till mid May to increase CYA. Pollen season will have ended by then and my frequency of backwashing will be far less than it is now.
 
The UV impact right now is not as extreme so protecting the FC is not as critical. Also many places get spring rains and overflow will just remove the higher CYA water. So no need to raise the CYA to summer time levels and then see it go out the overflow.
 
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