Sky high ALK

[Fassel]

My source water has an alkalinity level of 300 ppm. The pH is 7.6 ppm. CH is 200. The calculator recommends muriatic acid to lower PH. 1985 gallon swim spa- not yet filled. Should I worry about the high ALK or just work on my PH? Thanks

 

[Texas Splash]

Welcome to TFP! Focus on the pH. When it hits 8.0 use enough acid to lower the pH down to about 7.2. Repeat this process and over time the TA will slowly fall. But pH is you biggest concern.

 

[Texas Splash]

Also see

Lower Total Alkalinity

A lower Total Alkalinity level can help a pool owner stabalize their pH increase. We'll explain how to lower TA with a little help from muriatic acid.

www.troublefreepool.com

How do I use Chlorine in my Spa (or pool)?

If you have a question about any information within this Sticky, please start a new thread for yourself where you will receive very quick responses to your specific questions. Thank you! Introduction There are two main things to consider when maintaining your hot tub water, Water Balance and...

www.troublefreepool.com

 

[Fassel]

Welcome to TFP! Focus on the pH. When it hits 8.0 use enough acid to lower the pH down to about 7.2. Repeat this process and over time the TA will slowly fall. But pH is you biggest concern.

Can I or should I add dichlor during this time and use the pool?

 

[Texas Splash]

Can I or should I add dichlor during this time and use the pool?

Whether you use dichlor, trichlor, or liquid chlorine, you will of course need to continue adding chlorine each day for sanitation. Just never add those products to the same location at the same time as muriatic acid. Separate by a few minutes with good water circulation. Remember that dichlor and trichlor are stabilized forms of chlorine and increase the CYA level. The FC level must be balanced to the current CYA as noted on the FC/CYA Levels. The higher the CYA, the more FC required. Liquid chlorine has no such stabilizer increase effects.

 

[Fassel]

Whether you use dichlor, trichlor, or liquid chlorine, you will of course need to continue adding chlorine each day for sanitation. Just never add those products to the same location at the same time as muriatic acid. Separate by a few minutes with good water circulation. Remember that dichlor and trichlor are stabilized forms of chlorine and increase the CYA level. The FC level must be balanced to the current CYA as noted on the FC/CYA Levels. The higher the CYA, the more FC required. Liquid chlorine has no such stabilizer increase effects.

Thanks. I am reading it has minimal effects on PH & ALK. currently, my source water is 0 CYA (pool store tested it at 5). Im using the Taylor K006 kit. We are currently testing this process on our 450 gallon hot tub.