Help with getting pool clean

[CarlD]

I think you can ignore alkalinity and calcium hardness for now. Those numbers are not a problem if they are correct.

[Watermom]

Are you brushing the pool while the chlorine level is high? I'd continue to keep the high level while you are trying to clear it. One problem you are likely to have is that your pump is way overkill for your pool. We see that alot on AG pools. When your pump is too big, it can simply force debris through the sand field without actually filtering. Keep your pump running 24/7 while you are trying to clear it. Chlorine will kill the algae but you have to give your filter time to try and clear it out.

You also might want to verify that your sand filter is working by doing the DE test.
http://pool9.net/de-test/

[tim665214]

I have been brushing my pool about 3 times a day, but I always brush it right BEFORE I add chlorine. So while the chlorine is not real low when I brush, it is a little bit lower than what I have been trying to keep it at.
My pump is a 1.5hp motor connected to a 200lb sand filter. But it is a two speed pump, so I run it on low when filtering and on high when backwashing. Each morning when I go out to check on my pool, the water flow coming back into the pool is very low, so I have been doing a backwash each day. That tells me that the sand filter must be picking up something, right? Also, I replaced the sand in my filter this year also.

Thanks for the help

Tim

[tim665214]

I am beginning to wonder if I have a Chlorine Demand situation with how fast the chlorine is disappearing. The issue I have, is I am not sure how accurate my CYA test is, because my pool is so cloudy.

[Watermom]

Have you done an overnight chlorine test to see how much you are losing?

[tim665214]

No. I have not got exact measurements late at night. I have just been testing in the morning and adding enough chlorine to get me back to 20.

I am thinking about taking my shock level to 30. Do you think that would hurt my vinyl liner, since I have no guarantee of my cya level?

[Watermom]

I wouldn't go that high if it was my vinyl pool.