Hi, new to the forum and I'm looking for some help with water flow problem. I have a geothermal heating system. However, when installed a regular hot water tank was used to act as a buffer/holding tank to heat my floor. My question to anyone that can help is this; The manufacturer recommends that 1-1/2" copper pipe be used from the unit to the tank. However, the tank only has 3/4" inlets. Would these restrict the water flow enough to the point that 3/4" pipe could just be used from the unit to the tanks instead? I have no clue about water flow through a pipe. If you could help with a little explanation that would be great!