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Old 11-14-2020, 08:43 AM   #1
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Jayco 355MBQS Water Pump

Does anyone know where the water pump is located on the 355MBQS? Ours is a 2019 but I'm sure it's in the same location as other years. I had trouble winterizing as the AF had trouble being sucked into the system.
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Old 11-14-2020, 10:04 AM   #2
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It’s probably behind the water bay. You’ll need to remove the wall panel in the basement to get to it.
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Old 11-14-2020, 10:25 AM   #3
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Quote:
Originally Posted by rkymntsno View Post
Does anyone know where the water pump is located on the 355MBQS? Ours is a 2019 but I'm sure it's in the same location as other years. I had trouble winterizing as the AF had trouble being sucked into the system.
Did you flip the water inlet cone screen to open the check valve? Sometimes that spring is too tight and the pump suction can't overcome the tension.
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Old 11-14-2020, 11:57 AM   #4
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Originally Posted by Magnolia Tom View Post
It’s probably behind the water bay. You’ll need to remove the wall panel in the basement to get to it.
Thanks. I know I can listen for it and search, lol, but you're right I'm sure. Thanks.
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Old 11-14-2020, 11:59 AM   #5
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Did you flip the water inlet cone screen to open the check valve? Sometimes that spring is too tight and the pump suction can't overcome the tension.
That was gonna be my next step. Almost two gallons got up in there to winterize everything. Just took some maneuvering of the jug. Shouldn't be that hard. It wasn't last year. Doesn't the cone screen include the check valve or is it behind the screen?
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Old 11-15-2020, 12:14 AM   #6
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Thanks. I know I can listen for it and search, lol, but you're right I'm sure. Thanks.
Tom is right, it is behind the water bay.
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