Air from the empty supply line escapes through the air valve and the pressure tank fills with water.
Drain back water system for cottage.
When the pump stops put your finger over the valve stem opening.
Once the pressure tank is full the pump shuts off and the supply line automatically drains.
When the pump stops and as water is draining out of the pipe system you should feel a vacuum at the inlet of the snifter valve.
Take an under cabin video tour of how to install frost proof water supply and drain lines.
Http bit ly blrchannel watch my popular video.
The bleed back or drain back system on a water piping system works automatically to drain water out of piping between the water pressure tank or check valve and the bleed back or drain back valve opening found on the well or lake water piping in the well casing or at a level below the frost line.
I live in cottage country and every year i used to help my seasonal neighbours from down south struggle to get their water systems going in the spring.
Remove the snifter valve cap.
Open the drain valve leading from the bottom of your hot water tank and keep it open until water stops coming out.
How does the self draining system work.
And a grey water recycling system filtering and treating drain water for reuse in the toilet may make sense if you re building a large new cottage with a couple of showers.
If you own a cottage you probably know that seasonal water system resurrection can be torture.
A submersible pump a two way diveter valve that allows the water to drain back to the well without back driving the pump and a pressure reducing valve that slows returning flow to the diverting valve.
The submersible pump turns on and pushes water up to the cottage.
If your water system is powered by a piston pump they have visible drive belts reinstall the bottom drain plug and fill the pumping chamber with more antifreeze to keep internal valves wet and supple.
A company called cottage water supply advertises a self draining winter water system that includes.
Filling that black slimy intake line with water is like force feeding an anaconda while standing in ice water.
Water draining out of the pipe should draw air into the piping system.