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Great, thanks again for your help :lovetfp:

Agreed - not sure what the heck I did. I’m using TFTest kit, reagents are fresh and I’ve done all the tests a zillion times before so either I crossed some mental wire that hasn’t been crossed before or my sample got contaminated in some peculiar manner. Resampled & retested with more...

Thanks Allen - I redid all the tests on two different fresh samples. I’m using my TFTest kit and directions. The TA on a 10mL sample as you suggested is 200 (I did wipe the tip of the R-0009 reagent which I confess I normally don’t bother to do), FC is 4.5 (apologies, I labeled that result “Cl”...

Hi, I have just finished a pool renovation - new pebble plaster, tile and coping. The plaster was applied 6 days ago, acid washed 5 days ago and finished filling 3 days ago. Chemistry of the water when filling was complete was Cl - zero, pH 7.2, CH 400, alkalinity 150. Equipment start up was...

Great, thank you everyone. I will plan on keeping the FC in the 7 - 9 range. I did not know that the SWG caused upward drift on pH - our SWG has only been in for a few weeks and has actually been off most of the time because the FC was way high. I did add a gallon of 8.25% bleach when we drained...

We drained our pool (about 50%) to lower our CYA from 180. After draining I measure the CYA at about 100, higher than I was hoping for but we are going to soldier on until it comes down with time through backflushing etc. I find the CYA test quite subjective so consider my result "ball-park" - I...

Following up: with my fabulous new TF 100 kit I can now tell you with confidence that the CYA is 180 (sadly) and the FC is 9.5 with the SWG running at 50% for about 10 hours each day at variable speed. The rest of the test results are in the middle of desired ranges, CC is 0.5 or less and the...

I did look and there doesn't appear to be one closer to me than Sacramento, about 3 hours away. I don't think it is really viable, but when I get the hard number for the CYA test and we figure out exactly how much water we will need to drain we can do a cost benefit analysis and see what it...

Yep, figured the past tense was going to stay that way for my phosphates questions. From reading around here I have picked up that nobody cares, which makes it a bit sad that Leslie's is able to scare the jinkies out of people with their phosphate testing. I guess they have a product to sell so...

I think the pool store guys are trying to be helpful (some of them anyway) - but without spending a ton of time going over the "big picture" with each customer they are giving best guess advice based on incomplete data. And of course they have a business to maintain and they are unlikely to be...

Thanks everyone for your advice - I went to bed with a guilty conscience last night (felt like I should be out there draining my pool and adding bleach and getting on with it). Today is a new day. My test kit is on the way and should be here by the end of the week. Several people have pointed...

Righto, I will do that too. Thanks Marian! Will seek further input after doing proper testing. Sent from my SM-G920V using Tapatalk

Thanks, that was fast! OK, will do - the pool looks lovely and clear but from the urgency of your "NOW" direction I'm guessing that we are flirting with disaster :( Yes, in the mountains but not too hidden!

Yes, I ordered the TF 100 kit today

We recently installed a SWG after many years of using chlorine tablets (which I now see are rather disparagingly referred to as "pucks" here). The chlorine and CYA are high. The pool school chart has shown me what a problem this actually is. I just ordered the TF 100 test kit. Leslie's test...

After many years of using chlorine tablets / pool shock without doing any research (blushing with embarrassment at this point and VERY remorseful) we are endeavoring to be more responsible from this day forth. Actually, July 4th forth! That was the day we installed a SWG. Since then we expected...