Hello, I am writing here for my father, we live in France and he doesn't speak English. I will try to describe the situation first : 4 years ago he installed a geothermal heat pump with an open loop based on the dealer advice. The dealer told him that a close loop was bad because the ground would lose all it temperature after a while and then the system would become useless. My father didn't get a very good education, I couldn't find a way to make him understand that the dealer was wrong. So after drilling two wells we now have an open loop and a geothermal system. The water in the well has never been test for hardness, iron particles... and off course there is some thin sand in the water. As a result the open loop pumps are breaking, and we have to change them each year sometime several times a year. I would like to upgrade the open loop pump to a more robust model which will resist to sand. We had some Franklin, Jetly and Dab pumps in the past with plastic and inox impellers without much success. Around 1/2 hp and 4" diameter and the well is 68 feet deep. I would like some advice/feedback on a good model. I joined this forum because there is not enough resources on the subject in my country and I was hopping to find some experienced user and help on this forum. Thank, Stephane
Welcome. You may need to develop the well first. To get the sand out of your well. Did anybody leave you with a well log? The drillers on this forum may be able to help you out with some details. Where are you discharging? In to a second well? You definitely don't want to be discharging sandy water in to a second borehole.
There are well pumps that are designed to handle the abrasive fines that others will not. A change in pump brand/ manufacturer and a good well rehab may serve your father well. Pun intended, Eric
