I use a jet pump at my cottage ,summer use only. Most people draw their water from the lake using a submersible pump as it's easier to winterize. Everything I've read seems to imply that this setup is unsafe for swimmers . I would like to have water available in winter as I plan to retire to my cottage shortly. I currently have 2 water lines from the lake to my pump located in the basement. These lines are 125' long. I'm aware that internal heating lines are available but would be very expensive. They also allow electric contact with lake water as does the submersible pump. I'm also on rock so lines cannot be buried.
Answer:
Those cables that are in contact with both water and pump are not a danger to anything or anyone if they're properly installed and of what I've seen and heard, if they are not properly installed they just don't work. Not being able to bury the lines makes for a bit of a problem but you can wrap them with electrical heating cable to winter protect them.
Courtesy of Ren Molnar, Construction Consultant at HomeFocus.com. I can also be reached at (613) 748-3003 and Home Focus – The Radio Show is broadcast live 8 to 10 A.M. (Ottawa, Ont. time) on Saturdays on www.cfra.com.