9/29/22 PS10 is in the shop in Novi and the PS40 is at Galloup / Please split up so that we are not late for Grandmount Gardens they have notified tenants that we are coming. Thanks DH Sprinkler Service Call Service to install new PS-10 & PS-40 Switches to complete installation of alarm system Deficiency: Low air pressure switch was not programmed when it was installed and the connected alarm wiring is now backwards. Need to disconnect the 120 volt wiring for horn and bell outside and also alarm wiring, lower pressure to system and set switch to activate at desired pressure, then connect back the alarm wiring and 120 if desired.