Ok...what we did is we don't use sprinkler electric valve at all. we feet the air into a dump tank on the back of our gun and have a release valve which is a regular legal solenoid. And our dump tank is double layered schedule 80 pressure rated PVC tested at 600psi but never goes above 100psi due to the fact the FIRST regulators won't let us.
This works for us we shot a full football field length at 60psi
