I was at ******* this evening again checking the items I need to buy for my underground sprinkler project. While browsing for some risers, I saw a product made by Orbit. It's an automatic drain valve.
Do I need to put one of those? If so, should it be near the sprinkler head?
And also, I have a 2 gallon compressor. It's 100 psi. How do I design my underground sprinkler system so that before winter, I can use my compressor to remove all the water left?
Thanks, Any help would be greatly appreciated.