Hello to the group and good day. I bought a piece of property with an existing drilled well (140 feet) but has not been used for approximately 20 years. It has a submersible pump. While trying to remove the pump, we discovered that over the years mice had gained access to the casing (6 inch) and had been nesting in the upper part of the casing and there was stored seed material in the well above the pump level. This made removing the pump very difficult. Over the years, the seed material had grown into a mat of unknown thickness. The pump was not returned to the well because we expected that the screens would be clogged immediately. We also feared losing the pump. Has anyone ever encountered this problem before or any suggestions as to how to remove the debris. My hope was to be able to use the water to just flush the toilet in my RV. It was not my intention to use the water from this well for drinking.