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Old 06-02-2022, 10:08 AM   #1
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Default De-winterize

In order to de-winterize, I filled the fresh water tank, turned on the water pump (which was very noisy) and it ran for some time and I did not get any water pressure. I then hooked up the city water supply and ran water through all the outlet to eliminate the anti-freeze. I kept the hot water heater valves closed to avoid anti-freeze going through there. I don't see any switch to change from city to tank, so I am not sure why the water pump did not work off the water tank. I have a 2021 288 ISL. Any advice would be appreciated.
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Old 06-04-2022, 06:12 PM   #2
Bike Dr
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Depending on the size of your system the pump may run a bit, make sure there is enough water in your tank and all low point drains are closed, I had the same issue at first but left one faucet open for the pump so it could prime itself and purge the line. Then you should hear the pump change sound as it begins to pull water and build enough psi to satisfy the internal pressure switch..charging the system with city water is a good idea to aid the pump so it doesn't have to fill the whole system itself.. I hope this helps

Just a thought make sure there is no valve between the tank discharge and pump inlet to prevent the pump from priming
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Old 06-06-2022, 11:55 PM   #3
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If you have a suction for pumping anti-freeze in from a bottle, make sure the valve for that suction line is closed.
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Old 06-12-2022, 05:19 PM   #4
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There should be a hose to put antifreeze into pump system to winterize you can prime pump by pouring water into it also
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Old 06-14-2022, 08:40 PM   #5
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I have read of new water pumps coming from factory w/ slightly loose screws required tightening to prevent sucking AIR. With pump running, walk around and make sure no gravity drains OPEN? No valve in line between tank/pump? (most= not)
2000 Conquest LE 6266, Class-C on 99-E450SD, 6.8, 2v, V-10
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