We just finished our first month start up service and are now on our own. The SWG is fired up and I've done some testing but have a few questions about Pool Math and chemistry.
For reference, my pool is new, plaster finish, about 1700 gallons, IC40 started up.
Using the TF-100 and K-1766 salt test:
pH 7.8 (maybe a tad higher but not to 8.2)
FC 6.5
CC .5
CH 250
TA 130
CYA 50 (this is a bit confusing- measured to where the black dot wasn't fairly obvious, but I could still kind of see it)
SALT 2800 from test kit, 2950 Screenlogic reading
am I doing ok?
On Pool Math, I am using the suggested goals set to TFP.com .
My IC40 says optimal level is 3400, but the pool guy started my pool with 200 pounds of salt and a week later it is at 2800, which he said was even a little high for my pool?? Pool math says to add 85 pounds but he told me to keep it low because the reading is always off, but I am doing the salt drop test and the two readings are fairly close. What is the effect on my SWCG if the salt level is 600 less than target?
I am confused on some goals/targets. For instance, my CH is 250, with a SWG my goal looks like 350-340, but the Pool Math app says my target is 270. Which number am I actually targeting? Also, it says to raise CH I need to add Calcium Chloride- any kind in particular? The colored-plaster owner in me is saying "no no no CaCl!" lol. Is this an issue still for colored plaster or only during application?
My TA looks high, so add MA then aerate I'm thinking.
Good thing is, I've got .a CSI of .14 which PM says is good.
For reference, my pool is new, plaster finish, about 1700 gallons, IC40 started up.
Using the TF-100 and K-1766 salt test:
pH 7.8 (maybe a tad higher but not to 8.2)
FC 6.5
CC .5
CH 250
TA 130
CYA 50 (this is a bit confusing- measured to where the black dot wasn't fairly obvious, but I could still kind of see it)
SALT 2800 from test kit, 2950 Screenlogic reading
am I doing ok?
On Pool Math, I am using the suggested goals set to TFP.com .
My IC40 says optimal level is 3400, but the pool guy started my pool with 200 pounds of salt and a week later it is at 2800, which he said was even a little high for my pool?? Pool math says to add 85 pounds but he told me to keep it low because the reading is always off, but I am doing the salt drop test and the two readings are fairly close. What is the effect on my SWCG if the salt level is 600 less than target?
I am confused on some goals/targets. For instance, my CH is 250, with a SWG my goal looks like 350-340, but the Pool Math app says my target is 270. Which number am I actually targeting? Also, it says to raise CH I need to add Calcium Chloride- any kind in particular? The colored-plaster owner in me is saying "no no no CaCl!" lol. Is this an issue still for colored plaster or only during application?
My TA looks high, so add MA then aerate I'm thinking.
Good thing is, I've got .a CSI of .14 which PM says is good.
Last edited: