I hate to ask but something just doesn't seem right about the way you have it plumbed, is this the valve you have? http://www.surpluscenter.com/Instruct/I9-6587.pdf
if so then you want the power beyond plug in and the out port back to tank. and then once you install the second valve from the power beyond port it too needs a return to tank line. I have no idea if this will help your problem but it could. It's kind of hard to make out in you video.
If you look at kevins valve, he has one short line going to the other set of valves and another line going to return.
good luck,
dave
if so then you want the power beyond plug in and the out port back to tank. and then once you install the second valve from the power beyond port it too needs a return to tank line. I have no idea if this will help your problem but it could. It's kind of hard to make out in you video.
If you look at kevins valve, he has one short line going to the other set of valves and another line going to return.
good luck,
dave