How long should fc stay elevated when you shock your pool. Over night, or just for a few hours. trying to get my cc down with no luck. water is crystal clear, well it was until I shocked the heck out of it, hopefully I didn't screw up
Shocking Pool how long should fc stay elevated?
- Thread starter CornBelt
- Start date
Welcome to the forum 
Pool School, big white button, top right of every page. Here you go for the Shock Process: pool-school/shocking_your_pool
Post back with any new questions
Pool School, big white button, top right of every page. Here you go for the Shock Process: pool-school/shocking_your_pool
Post back with any new questions
I've read it, understand it for the most part, have the tf 100, when I use the pool calculator and shock to the dosage it tells me to, Im not seeing the same or close results in my fc test. I cant seem to get rid of my cc
Welcome!
Are you sure you're done? There are three parts to passing the tests.
Anyway, some people get lucky and are done in four days, some take three weeks. It just depends on too many variables. Make sure you scrub any hiding places, like steps and ladders.
Are you sure you're done? There are three parts to passing the tests.
Anyway, some people get lucky and are done in four days, some take three weeks. It just depends on too many variables. Make sure you scrub any hiding places, like steps and ladders.
It's a process. It may take sometime. The longer you maintain shock level the quicker it goes. Also POP helps alot.
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last night I dumped in 5 gals of 12.5% hypochlorite, that's what pool calculator told me I needed, this morning when I tested I had basically none or .5 fc and loots of cc. so do I go by pool calculator, or just keep testing while im shocking to see actual fc numbers at shock level
Keep testing while your shocking. Every hour if you can or as often as you can. As soon as FC drops bring it back up.
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I would post some results, but I put in some potassium monopersulfate along with the 12.5% hypochlorite so that will show up as cc. And boy did that make my clear pool into a cloudy mess
an hour ago I had fc up to 20, now its down to 9 already, where is it going, killing algae? and if it is how long do I need to keep it elevated that high for. my cya is 60
Yep the algae is using it. That's why you have to maintain shock level.
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I put in 12 gallons of 12.5% plus prolly 4 pounds of potassium monopersulfate, your telling me I need more??? how long do I need to keep it up, it will cost me a fortune to kill this algae
Is there something I should be using instead of the sodium hypochlorite to shock, I certainly don't want to add to my cya
Nope. That's the stuff.CornBelt said:
The good news is, demand tends to slow down, sort of logaritmically. first-time-shocking-with-bleach-t45074.html Scroll down to the last pictures on page one.
wow. yea I think that's the boat im in, the 5 gallons I put in last night did nothing, only made my cc worse, and if I wouldn't have asked questions here tonight the 12 I had put in already would have done nothing for me. I think I have it figured out, just keep dumping, and testing, when the algae is done eating, my fc wont drop like it is, it will hold at more of a shock level overnight, hopefully then my swg can handle it from there. Does that sound right in simple terms???
Yep.CornBelt said:
You're trying to get ahead of the algae. So you kill off 40% or so with the first load of chlorine, then maybe 25% with the next, then 20%, and so on. Each interval should require less and less bleach. And note the earlier post I made - the MPS shock gives falsely high CC readings. But that will go away.
I wasn't going to test for cc tonight, I just added 4 more gallons and im back up to 35 ppm, guess I will check it in a half hour see how fast it is dropping. is this something that can be done in a few hours. and if I shock at a higher fc level will it speed up the process?
and would I be right that once you start shocking you cant stop until you beat the algae, or it will just turn into cc
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