green water

[mrszaff]

OK, the pool looks great and we were able to use it this weekend.I just took a reading and my chlorine is zero! So I want to add bleach without turnng the liner brown again from a metal reaction. How much should I add at a time? what #am I loking to reach?

here are my other numbers: Ph 7 Alk 20 cya 90

[PoolDoc]

Add 1/2 gallon at a time -- on your pool that will be about 1.5 ppm. If you have 0.0 chlorine, and CYA = 90, try to get at least (3) 1/2 gallon doses in tonight. Add them via the skimmer, and wait 30 minutes between doses.

By the way, if / when you add acid to the pool, do NOT add it via the skimmer! Doing so will take metals OFF the filter and put them BACK into the pool!

[mrszaff]

I added 2 gallons of 6percent bleach , should I add baking soda?

we had a lot of rain the past few days and it got cold the pool is now cloudy and turning green but I want to avoid metal...
also, I haven't added and borax or baking soda yet
fc 3.2
cc .5,
ph 7.1
alk 30
cya 100

[Watermom]

You need to add Borax and you can also add baking soda.

Remember, when it rains, your pool still needs chlorine. We see this many times each season where somebody posts that it was rainy and the pool turned green. Rain does not turn pools green. Rather, people don't check on their pools when it rains and then chlorine gets low and algae gets started.

[mrszaff]

how much baking soda and borax?

[Watermom]

I'd do a half a box of borax at a time. After a couple of hours, retest and redose until you get it where you want it. Probably between 7.4-7.6 although anywhere between 7.2-7.8 is ok.

Regarding alk, it is going to take quite a bit of baking soda (like probably 15 or 16 lbs.) but you certainly don't want to put in that much at once. You can actually buy a big bag of baking soda at Walmart and also at Sam's Club, I think. I'd probably do a couple lbs. at a time. Take a few days to get it all in there. You add Borax and baking soda slowly through the skimmer while the pump is running. It is ok to add a dose of one right after the other with no problem.

[mrszaff]

thank you I will keep you posted!!!