“Works perfectly. Only used one on the lowest sprinkler. Instead of the water pooling around the head, it continues to be sprayed until the water pressure lowers enough for the head to seat back into the ground. Might add a second one to the next lowest sprinkler to further distribute the water.”
“I wish I would have found these years ago. They work perfectly and I'll waste several hundred less gallons of water each month in leaks due to down-field pressure.”
“I have a yard that has 12 zones with multiple slopes and the water drainage after the sprinklers were engaged and shut off was a mess. These valve checks stopped the issue at the lowest point of the zones so I will be installing in all my Hunter sprinklers.”