We have a 15,000 gallon AGP that has an Aqua Trol SWG and a sand filter. I have been fighting with algae for a long time and I just got my water tested at the pool store. My Aqua Trol is showing the salt level to be 400 so it has shut itself off. I have had my cell checked and the test showed that the cell was good.
Phosphates 300 to 500
I still appear to be having an algae problem along with what would appears to be a problem with my Aqua Trol SWG. I was wondering if these numbers look okay and if anyone has any suggestions as to why my Aqua Trol unit is not working?