Can one the the Pool Pilot Total Digital to feed acid automatically with the Jandy 1400?

My friend has the Jandy Unit.

Which Stenner pump should one use.

His pool is 20,000 gals and he maintains his acid manually at 7.5, about 16 oz a day. As he is retired and plays a lot of Golf he sometimes forgets to do it and wants to automate it.

I told him I really like the Pool Pilot unit but I do not know if they would work together.

Any idea on cost would be helpful.

Thank you to all who respond.