Recent content by cman227

Well right now I'm letting the FC drop a bit so I can get in the pool and rub the spots with a chlorine tab. After that I'm going to add 3lbs of trichlor shock to bring up the CYA to 30-35. I already added acid. Mostly I keep PH at 7.6 and CYA around 30 and FC around 10 - 20. It's taking a lot...

Post split from Black algae question Zea3 I have kept my FC > 20 and the pump running 24/7 for 3 weeks now. Most of the Black Algae is now light gray, but none of the spots have vanished completely. Should I try a copper based algaecide?

Also my PH readings are high when my level of chlorine is this high. Should I continue to ignore the PH readings for bring down my chlorine level?

I have used this method of super chlorination and over the past week, I have noticed an improvement but now the stains are smaller (tiny black spot in the middle of a larger gray circle) but still noticeable. I have also used a dose of Silvertrine algaecide which helped a bit. I would like to...

Most of these test kits don't have chlorine level readings up to 24 or even 8. The one I have only goes up to 5. Do you have a special test kit?

I have an aggregate surface that was installed last May. I have developed black algae spots on the walls and floor and I am currently treating with an algaecide (also brushing and keeping chlorine level high). I have noticed these white spots forming on the pool walls that can easily by scraped...

I have black dime size stains on the walls and floor of a new aggregate surface I installed last march. Used a Jack's Magic Test kit I bought from Pinch-A-Penny and it tested positive for copper. That was several months ago and I purchased the appropriate chemicals to treat it. I have since...