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Yeah I understand, just wanted to get an idea of what we can post it for roughly.

Sand filter with single speed 1.5hp pump.

Hope it is ok to post this here. We do not have a pool anymore and need to get rid of all this equipment. Anyone have an idea of what a good price would be and where we should post? We are in the Tulsa area. Anyone interested in the Tulsa area is welcome to look at as well. Thanks.

These are the two lights. The spa light seems to have some residue at the bottom. Not sure if it is algae. (If algae, not sure how we are passing OCLT though). This year has been painful pool year so far :(. Are these easy to remove and clean by ourselves?

Seeing something brown at the bottom of light on the inside. Passed OCLT though, so not sure what that could be. Is this something easy to remove and check?

It is possible, with the rains we have had as well.

Lost 3.5ppm last two days (both cloudy days). Seems a bit excessive so early on, with no one using the pool. Any suggestions? The only thing that we didn't do yet is to check the light. We passed oclt a couple of times and ended slam on Sunday. Should we add CYA. I am suspecting it to be 40...

Thank you. The whole reason for considering CYA increase was because of the 5 to 6ppm loss daily, passing the OCLT. But then, out of nowhere saw visible green algae and have been slamming since Sunday. There is not much sun in forecast for the next 10 days to test CYA. Should the sun be...

Passed SLAM. :giggle::giggle:. Two tests. CC was 0. Next felt a light pink tinge. So calling that .5. Either it actually reduced or washing the vial with bleach did it. Thank you. Do I wait for FC to go down to add CYA?

SLAM novice. Sorry for the many questions. If I am already registering a CC > 0.5 at night, is there any point in doing OCLT since one of the slam criteria will fail anyway? (I am assuming CC is not going to go away at night.)

Thanks. Will CC usually clear with no sun? Just trying to understand. Will search the forum/school as well.

Thank you. Should I let chlorine levels drift down?

First SLAM ever.. Pool has been at shock level the past 3 days. Crystal clear water, no visible algae,, brushed Monday and Tuesday but was getting a CC of 1. First OCLT last night. Last night. FC. 17, CC 1 Morning. FC. 19, CC 1 I did it twice this morning and it was 19. User error...

Thanks. I am assuming, I should continue SLAM until CC is at .5 and then do OCLT. Is this right?

Day 2 of SLAM. FC has been at 20 and did 3 additions yesterday and 3 today. There was a drop of 5 ppm between the tests today. A bad time for the speed stir to stop working :(. Doing the test with 5ml sample for now. Water was crystal clear to begin with. I haven't done the OCLT yet, because I...

I am now wondering if we did a proper SLAM the first time around. We brought it to shock level and the pump ran continuously for 2 days. Water cleared up. Did not test until the water cleared out. Passed OCLT. Should we be testing a few hours after bringing to shock level and bring it up shock...

I am surprised that we passed OCLT. To be on the the safer side, going to consider a CYA of 50 (most likely 40) and bring Chlorine to 20. Anything else, I am missing? Thanks a bunch to everyone.

Just noticed light green spots on the stairs (it was brushed thoroughly before shocking last week). Water is clear and passing OCLT though. Does it call for SLAM?

Tested CYA. Dot was a strain to see at 40. Does it make the CYA 40? [The sun was playing peek a boo and not blasting hot, but still tested]

Should we do another SLAM? 🤔

I honestly do not know the accuracy, but I am the only one doing it every year and follow the same procedure.

Thanks

CYA to my knowledge did feel accurate. What is the number I should be at? Last August it was at 60. (Started off at 40, and brought it up to 60 over the course of 3 months) This March, it was at 50. Tested twice this month, 50.

Tested CYA few days ago. It is a cloudy day today and rain tomorrow. So, will test again when the sun comes out. I definately saw the dot at the 60 mark. 50 - was a bit of a strain. At 40 - definately gone to my eyes. So decided to keep it at 50. Am I doing it right?

How do we know if the filter needs deep cleaning? And how do we do it? We did back wash it yesterday.

there are lights and we brushed them. Is it possible to pass OCLT with algae still lurking somewhere?

Did the OCLT again. There was a 0.5 loss. CC was at 0.5. The usage yesterday was again at 5.5 ppm. :( I am planning to test the CYA again when there is enough sun. It would mostly be 50 or 60 (considering the way my eyes see.) -- Chlorine reagents are fresh. -- I tested after chlorine...