Original > Hot Tub Forum
How to lower Alk?
MostlyLurkingGal:
No No Vinny.....do NOT confuse me more by suggesting bleach!!! ;D
Ok...just so I get this correct....
20 Mule team borax to increase Ph.
Baking Soda to increase Ph and Alk.
Soda Ash also to increase Ph and Alk.
What just increases Alk?
Vinny:
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I keep a low level of free chlorine with an 8 inch trichlor puck in a feeder in the pool and suppliment with bleach or liquid chlorine a couple of times a week. I use dichlor after soaking in my spa and bleach or liquid chlorine when I want to bring the free chlorine up to give a good sanitizing or when I want to raise pH.
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The discussion was to use dichlor the first week of a fresh fill then use bleach. It has to do with keeping CYA low (about 20).
I know it probably is easy but putting in 2 or 3 teaspoons is much more easier! Especially in the winter!!!!! ;D
Vinny:
--- Quote ---No No Vinny.....do NOT confuse me more by suggesting bleach!!! ;D
Ok...just so I get this correct....
20 Mule team borax to increase Ph.
Baking Soda to increase Ph and Alk.
Soda Ash also to increase Ph and Alk.
What just increases Alk?
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Everything you mention is correct, don't forget washing soda for PH and alkalinity increasing too.
NOTHING!!! Baking soda in a pool only raises the alkalinity, but it raises both in a spa.
I think the thing to do is lower both PH and alkalinity with acid and then raise it with baking soda ... but I don't know.
MostlyLurkingGal:
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Everything you mention is correct, don't forget washing soda for PH and alkalinity increasing too.
NOTHING!!! Baking soda in a pool only raises the alkalinity, but it raises both in a spa.
I think the thing to do is lower both PH and alkalinity with acid and then raise it with baking soda ... but I don't know.
Ok...Thanks Vinny. I would have just used my borax had I known this...I appreciate the info! :-*
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