[Deadhead]

I have a urinal I was asked to put in at church. I did not want to do it, and it is not needed. But, they insisted, so I agreed to take it as far as I could. I am competent/good at residential work. Better than some professionals I work with, but I am in over my head here. Or up to my...

I have a Chinese Sloan with the Magic whatever valve on top. My questions are:

1. Can the size of the supply be reduced to a 1/2" pex and have the valve still function? I suspect my Prob is that I need full 3/4" supply and possibly better water pressure than I want to apply to the system in this old building on a well.

2. Is there a minimum pressure required for these to function properly?

We got the thing hooked up w/ 1/2", and it just runs continuously, which is a Prob. b/c the person I was working with also insisted that we put a trap behind it that is not needed b/c the fixture has a trap built in. So… in addition to not shutting off, it also does not drain adequately. Drain part might be easy to fix, but he also insisted on doing it where we neatly glued up all the joints in a trap we fabbed with 1 1/2" PVC. Sigh.

Instructions were not that helpful, and I am suspect of instructions on stuff made in China to boot.

Thanks for any help. The best answer would be: 'This will not work' or 'Just put a ball valve on it and use it like that.' They will LOVE that.