Warehouse piping service. I found the air pressure alarm switch off! I found the air compressor motor running, but the belt was broken, which turns the pump that fills the system with air. I also found the dog house tripped today. I replaced the belt on the compressor and turned it on. I also picked up oil for the compressor. I changed the oil on the compressor and blew out the air filter. Pulled the valve apart and cleaned the reset flapper, and refilled. Water is leaking from the center zone of the valve, coming out of Pull the check flapper apart re re-clean, and try to reset the valve. Did reset the second time zone 1 is up as of this date. Clean the other 4 zones. All 5 zones are operating safely now.