Lake water supply line freeze prevention
I am constructing a cottage in Ct. The building is 6" above grade on concrete piers. Water supply is from a lake 40' away. The water line is buried 36" but
must be exposed above ground at pump connection and were it enters the building. The pump location is designed to be outside against the building in a small enclosure. I know this section will freeze in winter.
1. Is there a way to insulate and or heat the line to avoid freezing.
2. Is there a simple way to empty water in pump and line to below freeze depth in soil.
cottage lake water supply
I am going to take your advice to install a submersible pump. This solves the concerns with pump and line freezing. Now an underground electric service to the pump in the lake approx. 150' is required. The water line distance from the building to the submersible pump location in the lake will be approx. 150'. w/ a verticle rise of about 15'.
I will also use the heat tape and insulation surrounded with 6" pipe on the exposed sections and extend that underground 2'.
I have no knowledge of submersible pumps.
My concern is sand and debris drawn into the pump. My thought is 6" perforated pipe over the pump and pipe w/ filter fabric (sock) to prevent debris from entering.
Any recommendations on quality submersible pumps or other ideas.
The eases way is to make a small dry well close to the pump under the pipe before the pump about 2x2 2 feet deep minimum , and at that point drill a 1/4" hall on the bottom of the pipe , this will ensure that there will be no water left in the pipe from that point on once after pump stops,
If you are worried about the water may be too much for the small well or maybe peculation is not too god depending on the soil if pump runs to often, then you should install a shut off at that point with a bleeder and make a trap over it with a thick cover.
i have the same situation at my cabin and i have no grit electric , with solar and battery's can't have a heat strip (rope)
so i have 2 lowest places where i run drain pipe to out side with no valves on them , what i did is i installed a temp water valve on the inside of cabin that are normally closed hooked up to 12v dc no current draw at all , they are set from factory to open when temperature drop to 35 f and will empty out everything i want to drain at that temperature . sal
what you can use is also install a 75w light bulb near the concerned area and enclose it you will be ok