Estimate is to provide and replace 40 gallon natural gas water heater and grundfos recirculating pump. Water heater is located in 2nd floor mechanical room. There are two existing water heaters and the one on the right is leaking and will be replaced. Will also replace recirculating pump and reconfigure hot and cold water lines to be able to isolate the water heaters separately. Job completed March 6, 2024. Right side water heater has been replaced, both thermal expansion tanks replaced, reconfigured hot and cold water lines for both water heaters to include isolation crossovers in the event a tank fails and is need to be turned off. Also replaced grundfos recirculating pump. Water is on and tested with no further issues at this time.