Can't remember all the right numbers

[maryberrye]

Thank you Carl

We have the PH back in balance at 7.4 and will be putting some algaecide in today to get rid of the creepy crawlies.

Thanks again,

Mary

[Mike_in_NJ]

Don't dump more 'witches brew' junk in the pool!

Need to kill algae in the pool? Use chlorine.

Need to prevent algae in the pool? Use chlorine.

In many/most cases, all you need to do to kill the algae is to raise your FC to the appropriate shock level (based on your CYA, mostly) and KEEP IT THERE until the algae is dead. Then keep it there for another 3 days or so to make sure the algae is dead. Brushing, sweeping, or vacuuming the pool and running the filter and pump to circulate the FC to make sure the FC is able to get to any algae is helpful too.

There are some cases when other 'stuff' can be helpful in getting rid of algae, but usually all you need is time, a little effort, and enough chlorine in the pool.

[maryberrye]

Thanks for the info Mike. We did try chlorine only. Kept the level at 15/higher for over a week with the pump running 24/7 (it's still on)..swept every day, then vacuumed to waste or ran the Dolphin about every other day. Although it did clear the algae up, it isn't enough to completely remove it, so we are going to the algaecide as a last resort. We only use the polyquat kind to keep gunking to a minimum. As of this morning this is where we stand:

16k gal IG Vinyl
FC 16
CC 0
PH 7.4
Alk 180
CYA 20