Chlorinating pool while covered

[Lemonred34]

Kind of like it sounds. What would you think is the best way? I need to cover the pool with this tropical depression headed this way over the weekend. I get at least half a leaf net full of debris skimming on a daily basis. I planned to bring it up to shock level Thursday evening. (Still technically slamming but that will unfortunately have to take a back seat right now)

Could add pucks to a floater?

Cover won’t come off until at least Monday morning. So roughly 84 hours.

 

[ajw22]

Trichlor pucks in a floater can work if you can take a rise in CYA. Gotta see your test results to comment further.

 

[Lemonred34]

From Saturday

Cya 30
TA 120
FC was 11.5 so didn’t test PH

 

[Lemonred34]

I assume the weight of water/debris on the cover would probably keep the floater in one spot. My circulation isn’t the best in the corners etc which is where I would imagine it would end up.

 

[ajw22]

Complication is if you are in the middle of the SLAM Process raising your CYA will cost you more CL going forward.

I would not use the pucks and deal with whatever you have on Monday.

 

[Lemonred34]

I’m pretty desperate. I wonder if I could get some syringes to wiggle under the cover to inject LC into the corners of the pool. I’ve only been losing 2ppm FC a day. Maybe less with the cover/cloudy skies coming. So shock level may hold up for a few days at least

 

[ajw22]

Your pump going to be running?

You worried about bleaching the liner?

 

[Lemonred34]

Your pump going to be running?

You worried about bleaching the liner?

Yes pump will be on assuming we don’t lose power.

Not really, it’s already bleached where I poured cal hypo in all willy nilly this April before finding TFP

 

[ajw22]

Then add LC under the cover if you can. If not deal with it on Monday.

 

[Bama Rambler]

Since it's going to be covered, I bet that you'll have plenty of residual FC when you pull the cover off if it's at SLAM level. You could also add a little at the suction or return if you can get the cover back enough to access them.