Presently I have a shallow well jet pump setup to a foot valve where we get water from the lake. For use in the winter there is a heat-line running down the PE tubing to the foot valve. We use the cottage occassionally in the winter and my goal is to turn off the heat-line when we leave. Presently it is running 24-7 in a small heated pump room.
Knowing I have to empty the line of water prior to turning off the heat-line to prevent freezing and splitting of the pipe. I want to remove the foot valve and replace it with a check valve. The check valve would be 1 foot from the jet pump. Then I would add a valve to allow air to enter to release the water down the slopping PE tube. Then the heat line adaptor, then the PE tubing to the lake.
So the order would be Jet pump, 1 foot down the PE tubing a check valve, T junction with a valve to allow air into the PE tube, then the heat-line adaptor, then 60ft (10ft elevation) down slope to the lake.
I would then attach a Guzzler hand pump to the T junction to pump air into the PE tubing to push the water out of the bottom of the tube or atleast so it is under the ice and won't freeze.
On needing to reprime the system I would take the Guzzler hand pump, attach it the pump and pull the water up the PE tubing and into the jet pump.
My concern is regarding the check valve holding the vacuum (prime) or disrupting the jet pump somehow.
Any input is greatly appreciated.
Knowing I have to empty the line of water prior to turning off the heat-line to prevent freezing and splitting of the pipe. I want to remove the foot valve and replace it with a check valve. The check valve would be 1 foot from the jet pump. Then I would add a valve to allow air to enter to release the water down the slopping PE tube. Then the heat line adaptor, then the PE tubing to the lake.
So the order would be Jet pump, 1 foot down the PE tubing a check valve, T junction with a valve to allow air into the PE tube, then the heat-line adaptor, then 60ft (10ft elevation) down slope to the lake.
I would then attach a Guzzler hand pump to the T junction to pump air into the PE tubing to push the water out of the bottom of the tube or atleast so it is under the ice and won't freeze.
On needing to reprime the system I would take the Guzzler hand pump, attach it the pump and pull the water up the PE tubing and into the jet pump.
My concern is regarding the check valve holding the vacuum (prime) or disrupting the jet pump somehow.
Any input is greatly appreciated.