Algae growth on the bottom of the pool that won't go away

[kingjon3rd]

I've been having trouble with algae growth on the bottom of the pool.
The end of last week(19th) I checked my pool chemistry to conduct a over the night chlorine test:
FC: 6
CC: .5
PH: 7.6
Alk: 90
Hardness: 110
CYA: 30

In the morning i had
FC:5
CC: .5

I still shocked the pool since it was on the border. (3 gallons of beach to get to the 12ppm) I think it got to 14ppm.

I brushed it on friday and saturday, missed yesterday.

Today the whole botom is green again.

the FC is 6 and the CC is .5

I'm using a Taylor k-2006 test kit. Do I shock it again or am i not scrubbing good enough and I need to keep brushing? I'm new to this pool thing...

 

[jblizzle]

Re: Algae growth on the bottom of the pool that won't go awa

I think you are understanding the term "shock" incorrectly. [shock:2xgom9wx][/shock:2xgom9wx]

It does not sound like you were maintaining the shock FC level the whole time based on what you wrote.

 

[Vette]

Re: Algae growth on the bottom of the pool that won't go awa

You need to hold it at shock level until the 3 criteria are met:

• CC is 0.5 or lower;[/*:m:2b2rjcv7]
• An overnight FC loss test shows a loss of 1.0 ppm or less;[/*:m:2b2rjcv7]
• And the water is clear.[/*:m:2b2rjcv7]