Low TA

Problems relating to pH and total alkalinity.
Increase ph, increase TA. Reduce pH, reduce TA.
pH chemistry advice and techniques for the pool.
Al

Low TA

Postby Al » Sun 17 Jun, 2007 08:29

I just had local pool store (Swim Gem) test my pool (in ground, plaster, 35000 Gal). The test shows TA of 94 and Adj TA (don't know what this is) of 64. They recommend an ideal level of 125 to 150 and, therefore adding 34 pounds of Balance Pak 100.
Everything I read says that TA should be 80-120. Should I do anything and what is Adj TA?


Buggsw
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Postby Buggsw » Sun 17 Jun, 2007 14:05

They are adjusting it according to the level of CYA that is in your pool. A certain portion of your CYA could be accounting for your ALK reading.

What is in the "Balance Pak 100"?

What are the rest of your readings?

Did the store use strips to test or were they testing with drops? Are they a Sun dealer perhaps?-different dealers advise different recipes.
Al

Low TA

Postby Al » Sun 17 Jun, 2007 15:28

The test was made from pool water I brought to the dealer. The other tests (PH 7.7, CYA 100, TDS 350, Clorine 3, Hardness 240) were OK. Balance Pak 100 is BioGard Sodium Bicarbonate. They are a BioGard dealer.
Buggsw
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Postby Buggsw » Sun 17 Jun, 2007 16:11

Your CYA is high, so yes it can affect the TA.

Okay so the Balance Pak is really just baking soda. You can use 34 lbs of either to raise your TA to their recommended level. That amount should raise your TA to around 165 not adjusted for CYA. Use whatever is cheapest.

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