Bleed back water system problems.....if any??? What is the disadvantage to a Bleed back water system.....??? How many holes and what size holes works best? After 10 years of hauling water from the creek, I now have a well & most of the waterline installed. Starting to think about the pump system. Note: The Pit-less is down 13 feet, and all of the waterline is at-least 8 feet deep, with 2" of Blue Board. The waterline is 1" K-type copper, and 115 feet long. However the building may be unheated some winters. So the question is: Any disadvantage to bleed back system......? Thank you.