Have a light green pool

[heather_dear85]

Not sure if I am posting this in the right place. First time here. We have been doing everything to get rid of the green pool. I have a 20,000 gallon saltwater pool. The system is a autopilot dig220. The board keeps blinking purifier off check flow. We changed out our trisensor. But it still keeps reading a low salt level. We keep losing chlorine. We honestly don't know what to do. These are our readings.
FAC .5
TAC .5
SALT 3400PPM
CH 230
CYA 25
TA 100
PH 7.4
PHO 100
I have also cleaned out all the skimmers. We just don't know what to do anymore.

 

[JohnT]

Welcome to TFP!

Sounds like your salt cell is bad or needs cleaning. You'll need to take over and chlorinate manually until you can get it straightened out.

Check out Defeating Algae to get an idea of what you'll need to do to get it under control.

 

[heather_dear85]

Is there anyway to check to see if it is bad. We moved here in 2012. The pool was put in at the end of 2011. Don't know how long the cells last. Thank you for your reply.

 

[heather_dear85]

I did clean out the salt cell. Was one of the first things I did.