How to Flush and Purge a Geothermal Loop

Published 2023-10-27
Quickly learn how a flush and purge cart works and the methods used to remove air and debris from a closed loop geothermal system!

All Comments (9)
  • @RangeRov49
    Great video! I have a solar collector and a 7 series geo system that use good grade glycol as the coolant and it appears that they're tied in together, but I'm now realizing they're valved off from each other and that the valves are just a service station for both systems. I have the solar coolant changed out every 3 years due to heat degradation, but since the geo is at a much lower temp, how often is it recommend to change out the fluid (if ever)? I'm always checking the reservoir for visual ques but it always looks clear. I'd imagine there's test strips out there that would tell me more information?
  • @danmccoy6164
    Do you check the ph balance of the municipal water ? Municipal water can also have biologics that can cause a lot of problems. Municipal water in my area is also very hard will cause problems in a short period. You can not use distilled water either. As it will eat your metal parts. My brother had to replace an $80,000 chiller in a plant that he worked at because the mantainace guys flushed it and then refilled it with distilled water. A friend of mine hvac guy said he kept having problems with a system every 4 or 5 years. He said it kept having black slugde coming out. Biologics can cause this. I keep forgetting to tell him that's probably what's happening there. Im sure he's using the same tap water each time. Of course then you can have work replacing equipment that goes bad every few years.πŸ˜‚
  • @nuebien
    Great video. Can I use this in my weekly service meeting to train my service techs?
  • @fionnan2811
    Nice video thanks. Should the pump be removed from the unit to allow for better flow etc?