Good afternoon everyone!
I live in Southwestern ON Canada and have been having algae issues for quite some time. We live in an area of extremely hard water so when opening our pool each year we use the water that was on top of the cover and put it back into the pool. We've had no issues until this year, the water we put back into the pool was extremely green. Ever since then the pool has been anywhere from cloudy to light green to completely green(which it is today!!)
My pool spec's and levels are
26,000 G, vinyl lined pool with a sand filter. We are using a Jacquzzi 1.5 hp pump and a Zodiac SWCG
I have a crappy test kit(there are no good test kits available in Canada....only test strips) so I usually rely on my pool store, but they always err on the side of caution and have me freaked out about adding too much chlorine.
I do have some phosphates in the water level was anywhere from 250-500
ph 8 (which I lowered with muratic acid)
Starting Sunday night I added 5 gallons Divex, brushed the pool and took a sample in. They said to vac up what algae I could then add another 3 G liquid(which I added 5) and brushed last night. This morning I added a 50% Poly Algaecide. The green colour is starting to fade, but the algae on the pool floor is still green.
I know by reading the messages on here that my chlorine levels aren't high enough, but I'm just not sure how much to add. Can chlorine wreck my liner? I always pour off the diving board very slowly. Other people are telling me to use copper sulfate or flock to clear it up but I keep reading that chlorine should clear it up. Could the phosphates be contributing to my algae? I was going to add another 5 G of Divex tonight but is that enough? I know alot of my concerns are mentioned on other posts but when I read all the posts that's when my head started spinning with all the numbers etc! We are in the hottest two week of the summer and our kids are unhappy that we can't use the pool. Any help would be greatly appreciated!!