Hi all, new to this. 20K gal gunite pool in Central TX. Built in 2017
We’ve always had our water tested at L’s (can I mention names? We all know them...). We’ve always followed their maintenance recommendations and 80% of our tests are within “optimal” range. We have consistently had a variety of differing recommendations regarding our calcium and CYA levels. We’ve emptied 30% of our pool in the past to drop CH and it supposedly fixed it for a while. Gearing up for this season and we are having an issue with what I believe to be mustard algae on our walls. We also have a lot of scaling on our pool wall limestone and tile waterline. I’ve decided to take over testing and have done now twice, last night and this afternoon, with one L’s water test done to see discrepancies. Both of my tests came out about the same (18 hours apart). If you don’t mind, here are the levels (Pool Store (PS) vs. Mine)
PS - Mine
FC 3 2
TC 3 2.5
ph 7.6 7.8+
TA 84 140
CH 300 725
CYA 110 >100
Some levels are close but some are WAY off, which I’d like to learn if it is due to my newness to home testing or if the Pool Store (which i read everywhere not to rely on) is that far off. The pool math calculator app definitely tells me my levels will leave me prone to scaling, which is obviously happening. My water is crystal clear but i have that yellow/greenish slight growth on my walls which is pretty easy to brush away, but it keep returning. I’ve been brushing daily (5+ times a week) and we run our Polaris almost constantly.
I have the TF-100 test kit and follow directions exactly. Pool water was collected in same spot, 12 inches below surface in deep end of pool for all three tests done in the 18 hr span. I guess my main first question is the biggest adjustment that may need to be made....do I trust my newb reading on CH and start draining my pool (40% suggested by app)? I’m just scratching my head/doubting myself as to how the two sets of readings for TA and CH can be SO far off from each other.
Thank you for helping this newbie!
We’ve always had our water tested at L’s (can I mention names? We all know them...). We’ve always followed their maintenance recommendations and 80% of our tests are within “optimal” range. We have consistently had a variety of differing recommendations regarding our calcium and CYA levels. We’ve emptied 30% of our pool in the past to drop CH and it supposedly fixed it for a while. Gearing up for this season and we are having an issue with what I believe to be mustard algae on our walls. We also have a lot of scaling on our pool wall limestone and tile waterline. I’ve decided to take over testing and have done now twice, last night and this afternoon, with one L’s water test done to see discrepancies. Both of my tests came out about the same (18 hours apart). If you don’t mind, here are the levels (Pool Store (PS) vs. Mine)
PS - Mine
FC 3 2
TC 3 2.5
ph 7.6 7.8+
TA 84 140
CH 300 725
CYA 110 >100
Some levels are close but some are WAY off, which I’d like to learn if it is due to my newness to home testing or if the Pool Store (which i read everywhere not to rely on) is that far off. The pool math calculator app definitely tells me my levels will leave me prone to scaling, which is obviously happening. My water is crystal clear but i have that yellow/greenish slight growth on my walls which is pretty easy to brush away, but it keep returning. I’ve been brushing daily (5+ times a week) and we run our Polaris almost constantly.
I have the TF-100 test kit and follow directions exactly. Pool water was collected in same spot, 12 inches below surface in deep end of pool for all three tests done in the 18 hr span. I guess my main first question is the biggest adjustment that may need to be made....do I trust my newb reading on CH and start draining my pool (40% suggested by app)? I’m just scratching my head/doubting myself as to how the two sets of readings for TA and CH can be SO far off from each other.
Thank you for helping this newbie!