Sprinkler System Diagram

My sprinkler is cracked. I think it's selenoid but I'm not familiar with the parts of a sprinkler system. Where can I find specifications or diagrams on the system Sprinkles? I have a 3 / 4 "Richdel DPR 711 (150 psi max).

there may be something not well aligned with the solenoid. check that, and it could be a leak valve.
richdell valves can be difficult to replace if you are not experienced with them, you might be better to cut and put in a brand new valve.

Hope this helps

I'm not familiar with the model Richdel. I found one resource that can be helpful. You may be able to contact them for a product manual can be. Good luck.

To answer we need more details. Does this mean that it is cracked leaks? Solonoid sprinkler system have guts replaceable so you do not cancel your plumbing to operate them, but obviously this does not apply if the fittings, pipes or cracked housing.
The Solonoid may be housed near the timer or the son may run Solonoid within access holes distribution in the yard (or two) The first requires more pipe, over the latter becoming exposes Solonoid weather. (Indirectly)

Throw It Away THERE IS A dime a dozen

Unscrew the solenoid, see if there is a white piece of plastic on the bottom holding the piston in. If not, is style O-ring and seal ring is dry rotted or missing (it will remain in the valve). Or the son are screwed on the solenoid. The valve does not usually crack in this area. I have replaced many of these O-rings in my 11 years as a sprinkler tech.