Auto shut off valve

[Jason McK]

Well I ordered a new ASOV form Aquasafe and WOW I recieved my order the next day. Service was amazing.

Despite the new Valve it still does not shut off.

Any other suggestions?

[hillegom]

I'd say check all the plumbing against that melev's site's schematic.
The ASOV is just that. It shuts off the flow. Its either the plumbing or the new valve is faulty. Check the plumbing to and from the ASOV

[piusma]

I realized this is an old thread but I'd like to bring this up and may be someday it'll help one of the members. I have the same problem with the auto shut off valve not working properly. It'll slow the flow and may be stop for a second or two and it'll go again. If you have not installed the pressure tank, it will not work properly. At least mine doesn't without the pressure tank. Try reinstalling your pressure tank if you have removed it and it should solve the problem.
Steven

[mike31154]

Thanks for that info re the pressure tank. I don't have a pressure tank on my system and the ASOV has never worked since day 1 so I've always done what lastlight does, keep an eye on the system and manually shut it down. Took it apart to have a look and still no joy when I reassembled it. Pretty simple really, just a diaphragm that should close the openings on one side with sufficient backpressure, so apparently not much that should go wrong. But due to my own experience with it, I would never trust that thing on it's own without being monitored. I think I may have got it to work a couple of times by cycling the membrane flush valve, but certainly not reliably. Maybe I'll try adding a pressure tank for RO at some point to see if that helps.

[mark]

mines system is back up 100%, seemed the reason for not shutting off was indeed the check valve (not the ASOV)