Recommended chlorine strength

hattikins


Joined: 17/02/2008
Posts: 2793

Message Posted:
19/10/2009 19:51

We have been given various answers to this question, what is the ideal strength of chlorine for a swimming pool, anyone have the correct answer?

negativenick


Joined: 10/11/2008
Posts: 6023

Message Posted:
19/10/2009 19:54

do what we do and bung a mug full a week in.....



Had hardly anyone turn green or die since i adopted this method.....

birdyblaster


Joined: 19/10/2009
Posts: 131

Message Posted:
19/10/2009 22:58

bung it in NN. ohh yea.bung it all in.



whoever learnt you to bung it in.

hattikins


Joined: 17/02/2008
Posts: 2793

Message Posted:
19/10/2009 23:07

Whoever TAUGHT you to bung it in, not learnt you !!!

birdyblaster


Joined: 19/10/2009
Posts: 131

Message Posted:
19/10/2009 23:13

english was never my favorite subject. it is my second lanuage.it was to difficult

AlexF065


Joined: 07/09/2009
Posts: 271

Message Posted:
19/10/2009 23:25

I hope this helps



http://www.1st-direct.com/recommended-chemical-dosage.htm

TRNCVaughan


Joined: 27/04/2008
Posts: 4578

Message Posted:
20/10/2009 09:47

Quite a good set of guidelines in msg 6.



However, if Cyanuric Acid (CYA) exceeds recommended level, effectiveness of chlorine will start to fall. At Cyanuric Acid level of 100ppm or more the chlorine strength should be 7.5% of the CYA level.

e.g. CYA = 150ppm. 7.5% of 150 = 11.25. Chlorine level should be 11.25ppm



I often hear from people who have "the correct level" of chlorine in their pool but it still goes green. You may have 3 or 4 ppm chlorine in your pool but if your CYA is too high, your pool WILL still go green.