Tonight Sunday, still a bit cloudy. FC=6.5ppm added about 2G of bleach to get to 12.
At my end...
- Thread starter tcogs
- Start date
How old is your pool? Some of what you are describing sounds like plaster dust, which is common in the first month after a new finish is applied.
Is it possible that I have black algae? The pebbles a mixture of light colors and dark.. tough to tell if there is algae at times.
It is extremely unlikely that you have any kind of algae. Your FC level remained the same overnight at least twice, which means there isn't anything organic in the pool. Living algae would use up chlorine overnight. It is possible that you still have some dead algae on the bottom of the pool, but vacuuming should have picked most of that up.
Thanks for the reply, so the question remains... why am I still adding 2+ Gallons of bleach per night? do i need to raise my CYA?
Assuming your CYA is still 50, you are fine there.
I suggest you add enough bleach to reach your high target of FC 8 each evening (not 12 as previously posted).
Just make sure it does not drop below 4.
Adding excess bleach beyond your CYA level will cause a larger loss of FC during the day.
That may not be worded quite properly, but, you are just (unnecessarily) adding too much bleach to your pool each evening.
I suggest you add enough bleach to reach your high target of FC 8 each evening (not 12 as previously posted).
Just make sure it does not drop below 4.
Adding excess bleach beyond your CYA level will cause a larger loss of FC during the day.
That may not be worded quite properly, but, you are just (unnecessarily) adding too much bleach to your pool each evening.
yes the water has cleared no visible signs of algae. In response the previous post, I have been raising the FC level to 12 to compensate for the loss during the day. I raise to 12 in the evening and it's at 6.5/7 24 hours later. I will give a FC level of 8ppm a try and see what it drops to.
thx.
thx.