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Old 10-25-2019, 12:11 PM   #1
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How winterize pump to tank line

When I winterize my 2016 Freelander 23QB I am disconnecting the suction side of the pump to suck antifreeze into all the water lines. I have opened all the low point drains and driven a few miles to "slosh" the remaining water out but I do not see how to ensure the suction line from the holding tank to the pump can be winterized properly without dumping a lot of antifreeze into the holding tank. (Not an easy task I need to have some pressurized container of antifreeze to push it into the holding tank.) really would prefer to not put antifreeze into holding tank as that just makes a lot of extra work in the Spring when I try to get the antifreeze out of the tank.

I also am wondering about the line from the "City water" external connection. How do you pump antifreeze into that line?
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Old 10-25-2019, 12:26 PM   #2
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What I do is open both winterization valves then blow into the winterization hose to force an water left back into the FW tank. A tiny bit of water in the tank won't hurt anything since it will have plenty of expansion room when it freezes.


For the city water connection, you need 2 people. Before you do this step make sure that there is no pressure inside the water lines. Remove the screen inside the connection. You will see a little white button, this is the check valve. One person needs to stand outside and push that button to hold the check valve open. Valve damage can occur if you press the button while the system is pressurized. Have the other person turn on the water pump until you see antifreeze flow out.
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Old 10-25-2019, 12:35 PM   #3
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Quote:
Originally Posted by timfromma View Post
What I do is open both winterization valves then blow into the winterization hose to force an water left back into the FW tank. A tiny bit of water in the tank won't hurt anything since it will have plenty of expansion room when it freezes.


For the city water connection, you need 2 people. Before you do this step make sure that there is no pressure inside the water lines. Remove the screen inside the connection. You will see a little white button, this is the check valve. One person needs to stand outside and push that button to hold the check valve open. Valve damage can occur if you press the button while the system is pressurized. Have the other person turn on the water pump until you see antifreeze flow out.
I asked the same question a while back. Only way that seems practical is yours where you are disconnecting suction line from pump. On my TT this isn't exactly practical due to pump installation and for winterizing I have a 3-way valve that switches pump from tank to outside anti-freeze port. Still working on a way to resolve this ----- easily. Will say that after two winters the line hasn't been damaged. Apparently it has enough flex to freeze/thaw without damage.

As for the City Water Connection, I blow my lines out. This clears the short length of pipe/hose before it reaches the 3-way valve. Once the valve is changed to anti-freeze port, no water gets back into the line.
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