After seeing the photo, I think you can eliminate the manual index valve. The other valve in the pic, to the right of the filter, looks like the pressure demand valve that I was thinking of that controls pump operation.

The second pic is pure artwork. Nice job on the manifold!

Keep in mind I'm no irrigation specialist. But I do have 24 years in the chemical processing industry and a lot of work with pumps and piping systems. Personally, I'd check with someone in the know to be sure.

Good luck!

Scott

Scott

My HT