TECHNICIAN NOTES: came out today on return trip to install a recirculating pump system as of today unit has been installed and tested without further issues everything is working as it should . Unit is located in the basement of the home near water heater on hot side , cross over tee is located on master bathroom right side faucet under vanity. JOBSTATUS: complete Complimentary estimate to install a recirculating pump comfort series brand on water heater and add a T on the furthest fixture