How do I calibrate my Aquachem iii 601

[alvis]

My system is reading different level of salt than the one reading in the pool tech store. They say I need to calibrate the machine. The manual doesn't show how to.

[aylad]

Have you tried calling the customer service number in the manual? I only mention that because most folks around this forum have closed their pools for the winter, and traffic has slowed way down. You might get quicker info by calling customer service than by waiting for someone with knowledge of your unit to post here...