OCLT during slam

[Destinypanda1]

hiya all,

I got some algae in my pool so I decided to go for my first slam. It’s been about a week and the water is clearer than it’s ever been. I’m working from home so I’ve been able to test FC fairly often.

I have two questions if you don’t mind:

1. Before starting SLAM I adjusted ph to 7.2 and I’ve been reading previous posts everyone says not to worry about ph during SLAM but mine must be super high. I haven’t tested since I read the tests are unreliable but I was battling 110 TA so my ph needed adjusting daily. One week into slam and no acid added my ph must be at 90 haha. Wouldn’t this make the chlorine less effective?

2. My OCLT I’ve done it twice and I’m losing 2ppm, still waiting patiently. But there’s a lot of trees around my backyard so I do get some leaves, dirt, pollen, and whatnot that flies into my pool. Could this be throwing off the test?

Thank you

 

[bobloblaw42]

What was/is your CYA level and SLAM FC level?

If you're working from home, you could let your FC drop to 10 and test your pH bringing your FC back up to SLAM level after doing your pH test.

Organics entering the pool will always consume some FC. So brushing, netting, manual skimming, vacuuming and cleaning your filter periodically all help preserve chlorine. But probably not to the tune of 2FC overnight if you're doing most of these activities daily. That level of loss means you still have algae you're working through.

 

[Bperry]

1. Before starting SLAM I adjusted ph to 7.2 and I’ve been reading previous posts everyone says not to worry about ph during SLAM but mine must be super high. I haven’t tested since I read the tests are unreliable but I was battling 110 TA so my ph needed adjusting daily. One week into slam and no acid added my ph must be at 90 haha. Wouldn’t this make the chlorine less effective?

Its not likely that high, the rise slows down considerably the higher it gets. The pH doesnt appreciably affect the chlorine effectiveness when CYA is in the water.

2. My OCLT I’ve done it twice and I’m losing 2ppm, still waiting patiently. But there’s a lot of trees around my backyard so I do get some leaves, dirt, pollen, and whatnot that flies into my pool. Could this be throwing off the test?

Possible, but dont count on it. Keep going. Sweep and brush the pool to get that stuff out.

 

[Destinypanda1]

What was/is your CYA level and SLAM FC level?

If you're working from home, you could let your FC drop to 10 and test your pH bringing your FC back up to SLAM level after doing your pH test.

Organics entering the pool will always consume some FC. So brushing, netting, manual skimming, vacuuming and cleaning your filter periodically all help preserve chlorine. But probably not to the tune of 2FC overnight if you're doing most of these activities daily. That level of loss means you still have algae you're working through.

My CYA is 40 so I’m slamming at 16 ppm. Ok yes thank you, if I don’t pass the overnight test tonight then I try lowering to 10ppm briefly just to give the ph a quick adjust.

About the only place I haven’t brushed is inside the non-functioning pool light mainly because I don’t know how it works so I’m afraid to shock myself and unalive myself alone in my pool. I’ll take a look at that part.

 

[Destinypanda1]

Its not likely that high, the rise slows down considerably the higher it gets. The pH doesnt appreciably affect the chlorine effectiveness when CYA is in the water.

Possible, but dont count on it. Keep going. Sweep and brush the pool to get that stuff out.

Thank you this is what I had imagined and was looking for confirmation. Once ph gets high it slows down.

 

[Bperry]

My CYA is 40 so I’m slamming at 16 ppm. Ok yes thank you, if I don’t pass the overnight test tonight then I try lowering to 10ppm briefly just to give the ph a quick adjust.

About the only place I haven’t brushed is inside the non-functioning pool light mainly because I don’t know how it works so I’m afraid to shock myself and unalive myself alone in my pool. I’ll take a look at that part.

You can ususally unscrew a single philips screw on the outer ring and the whole assembly will float up to the top of the water (still attached to a wire of course). Pretty easy to do without being in the pool, just lean over the edge and dont drop the screwdriver or the screw.

 

[Mdragger88]

For the light, be certain it is turned off at the breaker before tinkering.
If you post a pic of it we can guide you on removal

 

[Destinypanda1]

Glamour shot of my beautiful crystal clear water after day a week of slam.
There’s the light, I see the Phillips screws at the top that was mentioned, I’m gonna remove it now with the pump breaker off.

 

[Mdragger88]

Glamour shot of my beautiful crystal clear water after day a week of slam.
There’s the light, I see the Phillips screws at the top that was mentioned, I’m gonna remove it now with the pump breaker off.

The light breaker - not the pump breaker.
They are likely not one in the same.

 

[Destinypanda1]

The light breaker - not the pump breaker.
They are likely not one in the same.

Found the light breaker and wanted to change the bulb while I’m at it but turns out the light isn’t working. I chased my own tail trying to fix it and gave up after 3 hours. I brushed it real good and ended up putting it back where it came from haha I’ll deal with it some other time.