Will return Tuesday Sept. 11th afternoon to install pressure switch. Pressure assist toilet was not flushing properly. I could not find the issue, so I tested the obvious components and cleaned off what I could. When I reinstalled it, it worked, and continued to work. I assume the customer tried to fix it himself and hadn’t did something properly. Well pressure switch is leaking from the threads, I let customer know I would return with a new one, because his was rather old. He agreed.