Hello all, I am trying to search for answers or at least how to find some answers here. I have a new home and have 4 geothermal (open loop) units installed. All are FHP units and ES series (I believe). I have 3, three ton and one 2 ton, for a total of 11 tons. These are paired with a goulds pump (33GS20) and franklin motor and controls. The problem is that i am not sure if these are working at the appropriate efficiency or not. I believe they are not, but honestly I don't have a good frame of reference since this is a new home. Currently I have no way to monitor flow, pressure or temperature across each unit. This is an open loop where I use the same well for domestic water. What is the starting point for determining if these are working correctly or not. I have read several posts which seem to indicate that too much flow cant be a bad thing. What controls do I need and where would I obtain them and at what relative cost? As a side note i have de-superheaters on 2 of the units but only one that is hooked up, but it doesn't seem to work as well as other posters indicate. I suspect this could be harmed by too much flow, but again, i need some direction on where and how to start. Thanks for your help.