Plaster manufacturer wants 7.0-7.2 pH at start-up- why?

mchimes

Silver Supporter
May 22, 2016
28
Orlando, FL
Hey,

The manufacturer of my quartz finish (Pre Marbelite Mix Marquis) says this on their warranty page:

"Afterwards [start-up], balance the pool water to the above noted water parameters. Check the pH several times per week for the first few weeks and add pool acid pre-diluted to the deep end of the pool to lower the pH to 7.0-7.2 range or lower if needed. NEVER allow the pH to rise above 7.6 during the first 30 days. Brush the pool daily for the first 30 days, then as needed."

I know the installers did an acid wash before filling and a lot of aggregate is exposed. Should I run my pH that low when it pushes the CSI into the negative range?

Thanks,
Mike
 

PoolGate

Gold Supporter
TFP Guide
Jun 7, 2017
5,353
Damascus, MD
Pool Size
29000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Jandy Aquapure 1400
Check out the below for "hot start".

 
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