Tssleeper
New Member
Trying to understand why a lake front sand point well that has been in service for 50 years is now sucking air. A new 1hp pump and new storage tanks have been installed this year. The pump primes and pulls lake water and fills the tanks but never reaches prime with the well point , it will reach 30 but go no further. It seems to only be pulling air yet we are able to pitcher pump water up the pipe but it does seem to have a lot of air in it. Have put vinegar down the pipe for a day and high pressure hosed the pipe. My 90 year old father in law has never heard of pulling or cleaning a point. I put a check valve on the top of the point to maintain the vacuum and have filled the pipe between the pump and the point with water but have not been able to maintain vacuum pressure. Any thoughts?