Slam

[jimmy88]

Hello all, first post here.
My question is can you swim during the slam process if the water is cloudy?

Fc 30
Cc .5
Ta 80
PH 7.4
Cya 70
Water temp 78
Thanks in advance for any and all help
Jim in ny

 

[woodyp]

Safe to swim up to SLAM value of FC for your CYA level. BE SURE you can see the bottom! Especially with little ones.

 

[jimmy88]

Just one more question please, when you pass the overnight test will the water just turn crystal clear or do you have to wait until the chlorine values to come down before it gets crystal clear?

 

[woodyp]

You may not get crystal clear until your filter cat he's up with all the dead particles.

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[max2k]

Just one more question please, when you pass the overnight test will the water just turn crystal clear or do you have to wait until the chlorine values to come down before it gets crystal clear?

it really clears up after you & filter remove all dead algae from there. With sand filter this cleanup usually takes several days.

please get one of the recommended test kits before you start the SLAM (or put its name in your signature). The SLAM is multi- day process where you have to maintain FC at shock level for your CYA so the good test kit is prerequisite for success.

try to take 'progress' pics over stairs or any other feature providing gradual depth view. If you take them at the same spot/same lighting conditions it makes it easy to see how it goes. Make sure your SWG is off and your pump/filter is on 24/7, brush as often as you can. Good luck and don't hesitate to ask questions .

 

[jimmy88]

Does back washing help? 3000 Gph. Sand filter intex.
Gotta fix that

 

[max2k]

Does back washing help? 3000 Gph. Sand filter intex.
Gotta fix that

backwashing helps when the filter gets clogged with stuff (+15 psi relatively to 'clean' pressure). Backwashing too often actually decreases sand filter performance, they work the best being slightly dirty.

 

[woodyp]

Backwash when pressure rises 25 percent of normal pressure.

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[jimmy88]

first picture,a and I started to maintain about 30fc Sunday afternoon. It was just starting to get dirty green,not bad though. Now it looks blue with a little cloudy.
Thank you everyone for the input.

 

[jimmy88]

What stage would you say I'm in?

 

[max2k]

What stage would you say I'm in?

you need to say that by trying to measure your overnight FC loss- part of OCLT. It will take some time for your sand filter to make it completely clear but FC overnight loss test will tell you right away.

 

[AimeeH]

backwashing helps when the filter gets clogged with stuff (+15 psi relatively to 'clean' pressure). Backwashing too often actually decreases sand filter performance, they work the best being slightly dirty.

As woodyp said in post #8 you want to backwash when your PSI is 25% above your normal clean pressure. For example my clean pressure is 12, I don't backwash until about 15/16. But if I see above 16, definitely I backwash.

 

[jimmy88]

Wow didn't know that about backwash I have been doing it twice a day.
Thanks again

 

[jimmy88]

Like magic. Passed overnight test and water crystal today. I'll post picture later. Gonna keep it up at shock value one more night and make sure it passes again. No cc values either.

Then what, how do I lower chlorine values?

Thanks again everyone

 

[woodyp]

Sun will lower it fast enough

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[jimmy88]

Hello again, testing last night 9pm fc31 woke this morning 5 am tested fc34ppm,
What could be the deal?
Maybe I misfire this morning 68 is a lot of drops to count.
Water is crystal clear today. I will run overnight test again tonight.
Any thoughts?

 

[VinDeeLoo]

Is you SWG running overnight?

 

[jimmy88]

No it has been off since I started slam.
Now it is staying off until chlorine levels come back down.

 

[jimmy88]

5pm readings,
Ph. 7.5
Ta.100
Cya 60
Fc 25.5
Cc 0
Still crystal but man can I feel the chlorine.

 

[jimmy88]

One more question please , should I wait for chlorine levels to get to 6 to 8 ppm before adjusting my ta and cya?