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Old 09-01-2019, 11:27 PM   #1
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Water pump intake issue

2009 Denali 28LBBS-M5. The water starts spitting and pushing air from the faucets when the tank is about 1/3 to 1/2 empty. Works fine when it's full. The pump is priming fine. Only thing I can figure out is the intake hose has a crack in the tank. Best I can tell I am going to have to drop the tank to make the repair. Before I start pulling screws and insulation anyone have words of wisdom? Or a guide to how to remove the tank? Thanks for any advice.
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Old 09-02-2019, 01:16 AM   #2
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2009 Denali 28LBBS-M5. The water starts spitting and pushing air from the faucets when the tank is about 1/3 to 1/2 empty. Works fine when it's full. The pump is priming fine. Only thing I can figure out is the intake hose has a crack in the tank. Best I can tell I am going to have to drop the tank to make the repair. Before I start pulling screws and insulation anyone have words of wisdom? Or a guide to how to remove the tank? Thanks for any advice.

I think I'd first determine if the water level gauge is accurate. It may be off by that much and you actually are out of water.
What is the intake line material?
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Old 09-02-2019, 05:12 AM   #3
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I think I'd first determine if the water level gauge is accurate. It may be off by that much and you actually are out of water.
What is the intake line material?
That was my initial thought but when we filled the tank it only took about 10 or 15 gallons. wish that was the case though.
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Old 09-02-2019, 10:50 AM   #4
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That was my initial thought but when we filled the tank it only took about 10 or 15 gallons. wish that was the case though.
When I first got my RV, the tank would only take a few gallons before it splashed back. The gauge indicated only a few gallons. Turned out that it had something (piece of plastic, according to the repair shop) covering the vent so it would not take over a few gallons. I had the same issue with air in the lines. The pickup is too high in the tank.
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