help! my pool cover came off a little...

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EmilyOTR said:
I will get CYA in as fast as I can ...
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Before you add CYA confirm your pool can hold chlorine by adding 10ppm of liquid chlorine and test your free chlorine after 30-minutes. You likely have ammonia in your water if you lost 80%+ of FC in 30 minutes.
 
\Don't let the pool company add ANYTHING to your pool.
If they are charging you a fixed price to open - whether or not they dump chlorine or other 'stuff' in - just have them leave the chlorine and other 'stuff'.
You can add the chlorine yourself after the pump is up and running and you actually run a full set of tests using your TF-100 and your salt test.

Do as Allen suggests in the post above and confirm the pool holds chlorine before adding any CYA.
 
EmilyOTR said:
they will want to dump 4 gallons of chlorine in and clean the pool. Is that ok?
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That's 33 FC using their 12.5% bleach.

CYA was last a 70 and has likely gone down about half over the winter. It would need to be mixed well and CYA tested to find an acceptable target but 4 gallons risks damage to your finish.
 
ajw22 said:
Before you add CYA confirm your pool can hold chlorine by adding 10ppm of liquid chlorine and test your free chlorine after 30-minutes. You likely have ammonia in your water if you lost 80%+ of FC in 30 minutes.
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Ok, I don't know anything about ammonia.
 
Newdude said:
That's 33 FC using their 12.5% bleach.

CYA was last a 70 and has likely gone down about half over the winter. It would need to be mixed well and CYA tested to find an acceptable target but 4 gallons risks damage to your finish.
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wouldn't that be the case every year? They dump 4 gallons in every year at opening.
 
ajw22 said:
Hopefully you will not need to learn. Given where you are starting this year it is worth checking.
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Ok so before I do anything I should bring my FC to 10, and test in 30 minutes and hope I still have some? then if I do, start the SLAM?
 

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should I test it now? See if I have any FC at all? I normally would not think of this but since the dumb pool has come open already it seems more accessible for some reason. lol
 
EmilyOTR said:
should I test it now? See if I have any FC at all? I normally would not think of this but since the dumb pool has come open already it seems more accessible for some reason. lol
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You want to mix the water before you test to get accurate results.
 
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ok, so I open tomorrow. I looked under the pool cover a little as the water is drained off. I can see the walls are stained but I can't see the color of the water because I'm not opening it enough to get light. anyway, if it's the wrong color, how do I test it? is that a dumb question? I've never not had clear water to test.
 
and I'll start a new thread tomorrow with a photo, but basically I should first test for chlorine, add some, and then test in 30 min to make sure it holds. then I start the slam, assuming I still have chlorine.
 
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There's 1000 slams on record with green or even black pools that had no affect on testing. (y) Maybe even 10,000.
 
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