I have been considering the AutoPilot Total control (with built in ph/ORP controller). However, i have been able to find a couple of posts alluding to some special concerns related the using a ph/ORP controller, but nothing specific.
What are the pros / cons of using a chemistry controller?
Any specific concerns related to CYA? or to salt?
Any recommendations as to which controllers and which sensors are the most reliable?
If you were to use a chemistry controller, would you use it to control your SWG, or would you just hook it up to a bleach pump/ resevoir and forgo the extra cost of a SWG?
Here are some links to some controller manufacturers that I have been considering: