Hello All,
Yesterday I replaced my SWG and whilst I was at the shop I had my water tested. They used a automated precision pipette to measure water into individual test 'cells' that were pre-dosed with the testing chemical and sealed (obviously this seal was broken to add my pool water). Each 'cell' was then measured in a photometer. I would expect this to be as accurate as testing could be outside of a lab.
the results were :-
pH 7.4
FC 2.89
TC 2.08
TA 90
CH 170
CYA 40
Salt 4000
This is for a SWG chlorinated pool and I would consider that the CH and CYA should be raised a little ?
The thing that surprises me (and I dont understand) is how the TC is less than the FC ? surely TC=FC+used chlorine and would always be slightly higher than FC ?
Is this an indication of another problem , a testing error or perfectly normal ?
Thanks
Tim
Total Chlorine less than Free Chlorine ?
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- Swimming Pool Superstar
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Total Chlorine less than Free Chlorine ?
Looks like your La Leslie's store is as dependable as some around here in the US.
Anybody can make a bad test.
What is much worse is, that he than puts absolute nonsense on the paper.
Your CYA is very close to ideal level. If you feel like raising it let some trichlor float in the floater.
Your FC is barely high enough anyway.
Anybody can make a bad test.
What is much worse is, that he than puts absolute nonsense on the paper.
Your CYA is very close to ideal level. If you feel like raising it let some trichlor float in the floater.
Your FC is barely high enough anyway.
Total Chlorine less than Free Chlorine ?
when you have a salt pool their manuels normally state to keep your cya/conditioner at 80ppm so you dont burnout the cell as fast. Also check your manuel as salt is suspose to be 3200ppm and when to high the cells will shutoff.
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- Pool Industry Leader
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Total Chlorine less than Free Chlorine ?
Just make sure that your FC level is at least 5% of the CYA level, so if the CYA is 80 ppm then your FC should not be lower than 4 ppm. Otherwise, algae can grow faster than chlorine can kill it (regardless of phosphate and nitrate levels).
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