Hey, I already edited my idea mentioning that I changed the AS valve with a PVB and a valve.. Actually $115USD more because I bought copper pipe to be overground. But still, I think is cheaper to have a main automatic valve and not use SCH 40 pipe after that rather than have always water pressure around the house. At least I am saving 15 bucks considering already the difference of cost of PVC SCH 40 and the cheaper SDR21 and the added valve.
After I bought wrongly a set of 4 electric valves to be buried, and 1 anti-shipon electric valve to serve as a main line backflow prevention device I had to decide if I need to expend again more money to correct the situation, abort or redesign the concept. Well, being an engineer I accepted the challenge of redesign the concept. First I have a manual valve from the main line, as an emergency shutdown, then I installed the anti siphon valve. The idea here is to avoid use sch 40 PVC piping after ...
