38x21 indirect tank leakin, 3/4 copper piping into PEX 3/4, current tank is 28 gallon Weil McLain indirect water heater. 3/4 dielectric unions, piped into boiler with circulator Folkes arrived on 11/09/2021 to install a indirect water heater. Upon arrival I Isolated the old water heater and began to drain what I could. I then cut the old unit out and brought it outside. I then bright the new unit in and began to pipe everything in I started with the supply and return for the boiler and added drains on both. I then connected the domestic line and added a drain on the supply line. I then turned the Main water on the domestic side and began to fill the unit. I then filled the boiler side. I let all the air out of the unit and turned everything on and checked for leaks. There are no leaks at this time. I then thanked the customer for choosing folkes and left.