High pH problems

[maxowner]

Hi, I recently bought a house with a 26000 gal. IG plaster pool, sand filter. I converted it to salt water. Everything is good except the ph is constantly high, around 8.0. I add muriatic acid to bring it to 7.6 but in less than a week it is high again. I have gone through 4 gallons of acid thusfar this summer. The pump runs 24/7.

Current chemistry:
pH 8.0
Free Cl 2.5
total Cl 2.5
TA 94
Salt 2900
CYA 56 (I am adding some now)
Hardness 237

Can I do something to lessen the acid demand?

Thanks!

 

[no-mas]

Lower your TA to 60-70. I had similar acid demand as you describe, but lowering my TA was a huge help. Read this article http://www.troublefreepool.com/pool-school/water_balance_saltwater_generator along with the rest of pool school, and test the TA yourself - pool stores really don't do a good, consistent job, and testing yourself will help you gain control of your pool.

 

[duraleigh]

Do not let your pH stay around 8. Get it down to 7.2 if you waqt more time in between acid applications.

Lowering TA is a good idea and will probably reduce your consumption a lot. Just don't neglect the fact that 8.0 enters the danger zone for high pH.....get it down sooner rather than later.

 

[maxowner]

thanks for the replies!