I have just installed a Moentrol off of a pressure loop which leads to four body spray jets, a rain shower head, and seperate body spray system. The problem I am facing is that upon installing this unit I now have turned on the water main and I am not getting any water through the lines. Could it be possible that a lever is on backward on my Moentrol or that a valve is upside down blocking the flow of the water? Any troubleshooting help would be appreciated. Thank you for your time. Jeff