Sand pump

[PoolStored]

I understand what they are lol. I'm asking what is YOUR CC and CYA?

 

[kellyfair]

Cc is that the combine clorine and the cya is that the acid test sorry very new to pools

Yes, CC is the combined chlorine. I think you gave us TC - total chlorine.

CYA is the cyanuric acid test. We need to know what yours is.

 

[phonedave]

Cc is that the combine clorine and the cya is that the acid test sorry very new to pools

Yes. Please list them out in one post.


Let's step back a second here and reset. Hopefully you have read the links that were provided. If not, here are the key takeaways.

1. Pool Store tests are rarely, if ever accurate.
2. Pool Store recommendations are even less accurate than their tests
3. Home test kits that use strips and compare colors are next to useless. A drop based test kit is what you need to really understand what your pool is doing.
4. There is a sweet spot for CYA (aka Stabilizer). CYA "protects" your chlorine from the sun and also makes it "less harsh" on you. But it also makes it less good at killing what it is supposed to kill. Too little CYA and any chlorine you put in the pool will soon be burnt off by the sun and gone. Too much CYA and you will have to add LOTS of chlorine to the pool to get any sanitizing done.
5. For all intents, any sort of "dry" chlorine you use - pucks, sticks, granules - be it called shock, burn out, Clorox Blue, or any other snazzy name is a combination of CYA and Chlorine. Oxygen Shock, or OxyShock, or Non-Chlorine Shock is different. It does not have CYA, but it also does not have chlorine, and some people are allergeic to it and get rashes. Don't use it, there really is no need to in a pool and you still need choline with it anyway.
6. CYA does not go away. It build and builds in your pool. The only way to lower it is via adding fresh water (and removing the water with the CYA in it)
7. If you keep using pucks (or any other solid chlorine), your CYA goes through the roof

That is the basics

Now as for Shocking your pool. Shock is a level of chlorine in the pool where it performs a complete sanitizing process (there are people here who can get into the whole science behind it, it is enough to know that you need to get to shock levels when you have outbreaks in your water) . Based on how much CYA you have, there is a level you have to raise your CL to get to shock level.. The easiest way to do this is with bleach or liquid chlorine. They are the same thing, but LC is between %50 to %100 stronger, so you need less of it. And use PLAIN bleach, no easy pour, no splashless, no scents. Chlorine in liquid form is easier to dose and does not add CYA.

The process is called SLAM (at least around here). Shock Level And Maintain. You raise your CL to the shock level and keep it there until the pool is clean (not clear, clean). How do you know it is clean. You do what is called an OCLT - Overnight Chlorine Loss Test. There are basically two things that will cause you to loose chlorine: sunlight, and organic stuff in the water. So you measure your FC when it turns dark, and measure it again before it turns light. Since there is no sun, if there are no nasties in your water, then your chlorine loss will be zero (in reality a loss of 0.5 ppm is OK). If you loose more than that then you still have stuff growing in the water so you keep it maintained at shock levels until it does pass.

Once you get your pool sanitized, then we can discuss keeping it that way. All you need is liquid chlorine, something to adjust pH, possibly baking soda, and stabilizer if your CYA is low. No need for any other fancy magic potions the pool store may want to sell you.

Once that is done, we can talk about getting your sand filter dialed in and any fine particles our of your water.