Removing algae from friends pool

[jbfilms]

Hello I've started working on a friend's 33k gallon pool which has algae which I've already Put in cyanuric acid, half a gallon of muriatic acid, 5 gallons of sodium hypochlorite, 3lbs of shock and enough sodium bromide for 30k gallons and ran for 24 hours put in more chlorine and brushed with stainless steel brush and a pressure washed but algae won't budge. Should I do a second sodium bromide treatment?

Taylor K-2005 readings 1 test
FC 0
CC 0
PH 7.8
TA 150
CH 150
CYA 0

 

[Donldson]

Why would you be putting in sodium bromide? Is this an indoor pool that will be using bromine to sanitize?

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[jblizzle]

I think they are forced into have a bromine pool now aren't they? Unless you replace the water.

 

[jbfilms]

Algaecide I meant.

 

[Donldson]

Sodium bromide is not an algaecide. It is used by some pools that are severely overstabilized to convert the pool to a bromine pool but will do zero to help a pool with low stabilizer levels. He will likely see higher chlorine demand now because bromine is not protected from sunlight by CYA so it will burn off faster during the day.

If you want to kill algae you need chlorine and need to SLAM Process

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[jbfilms]

This is what I used in the past with good results Amazon.com : SeaKlear Yellow Klear Algae Control, 2 lbs : Swimming Pool Algaecides : Patio, Lawn Garden

 

[YippeeSkippy]

Jbfilms, this is unfortunate to say but algaecides in an already algae filled pool don't do anything. They're a preventative not a cure. Sodium Bromide effectively turns a chlorine pool into a bromine pool, as soon as you add more chlorine to the water it will re-activate the bromine. This may be a problem for you and your friend.

How much CYA did you want to add to get to what level? The shock you put in may have also contained some, so do be careful that you don't over do it.

Have you read Pool School yet? The link is up at the right top of this page and I hope you'll find it very useful and helpful.

Keep us posted.