Hi everyone,
Would like to introduce myself as this is my first post on TFP ( long time reader and follower). I purchased a home with a 40,000 gallon plaster in ground pool about 1 year ago. This is my first time owning and taking care of a pool, and thanks to this website I have done a lot of learning, using the BBB method to care for it. I noticed throughout the time I had the pool that during my weekly scrubbing, there I see almost like dirt on the walls and floors which rapidly comes back. I later realized this is mustard algae, as its a dark pool and the color is hard to tell.
For the last 7 days I have been SLAMing my pool, using both the tables and calculators on this website to keep things in balance. Here's the thing, my CYA is 65, so the shock level should be 27ppm chlorine, but at this level, the algae is thriving. I had to raise the chlorine to 50+ ppm to have any effect.
I am scrubbing the walls and floors 2x a day
Checking the chemistry 1x a day using a tailor k2006 kit
Automatic vacuum is running 12 hours a day
I am manually vacuuming each night
Took apart the DE filter 2 times to clean and re-assemble
There is nothing floating in the pool
Today is day 7, and the amount of mustard algae i see is drastically reduced, but still there and flourishing. The overnight chlorine drop test was 0.5ppm chlorine, and there was no CC, but I still see the mustard algae. So My question is what do I do next to get rid of this problem? Continue with the hefty slam process until I do not see any more visible mustard algae? is there anything else I can do?
Also, as an aside, I have switched from liquid bleach to cal hypo. The cheapest bleach I can find is $4.19 for a 12.5% gallon. I am able to buy 73% cal hypo 50 pounds for $92, which converts to roughly 45% cheaper than the liquid. IS there something I am missing? Everyone says that the liquid is much cheaper than cal hypo, but not in my case.
Thanks so much for your time and help!
Would like to introduce myself as this is my first post on TFP ( long time reader and follower). I purchased a home with a 40,000 gallon plaster in ground pool about 1 year ago. This is my first time owning and taking care of a pool, and thanks to this website I have done a lot of learning, using the BBB method to care for it. I noticed throughout the time I had the pool that during my weekly scrubbing, there I see almost like dirt on the walls and floors which rapidly comes back. I later realized this is mustard algae, as its a dark pool and the color is hard to tell.
For the last 7 days I have been SLAMing my pool, using both the tables and calculators on this website to keep things in balance. Here's the thing, my CYA is 65, so the shock level should be 27ppm chlorine, but at this level, the algae is thriving. I had to raise the chlorine to 50+ ppm to have any effect.
I am scrubbing the walls and floors 2x a day
Checking the chemistry 1x a day using a tailor k2006 kit
Automatic vacuum is running 12 hours a day
I am manually vacuuming each night
Took apart the DE filter 2 times to clean and re-assemble
There is nothing floating in the pool
Today is day 7, and the amount of mustard algae i see is drastically reduced, but still there and flourishing. The overnight chlorine drop test was 0.5ppm chlorine, and there was no CC, but I still see the mustard algae. So My question is what do I do next to get rid of this problem? Continue with the hefty slam process until I do not see any more visible mustard algae? is there anything else I can do?
Also, as an aside, I have switched from liquid bleach to cal hypo. The cheapest bleach I can find is $4.19 for a 12.5% gallon. I am able to buy 73% cal hypo 50 pounds for $92, which converts to roughly 45% cheaper than the liquid. IS there something I am missing? Everyone says that the liquid is much cheaper than cal hypo, but not in my case.
Thanks so much for your time and help!