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Old 06-01-2018, 02:49 PM   #1
Harold
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Default Holding tank flush outs

99 sunvalley. the flush outs for the grey and black tanks are plugged up. Does anybody have any ideas on cleaning out the spray nozzles?
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Old 06-02-2018, 11:27 AM   #2
Sudsy
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Default detergent

I would try putting some good detergent in the tanks and driving the unit. Try you best to get the water detergent to splash on the flush outlets. I am not sure they are even "nozzles" but think they are just water lines. I can actually see the ends of my flush line on the right side in one of the compartments but I have never fooled with them. They don't sound like a heavy spray just a flow of water. I use a clear sewer adapter and watch the drainage until I am satisfied. I think a lot of folks spend a lot too much time trying to clean the tanks. I do an deep cleaning before I put the coach away for winter. On the Black tank. When you are getting ready to leave a full hookup start the tank flush first thing. Let it run while you are doing the rest of your tear down. Then i close the drain and let the flush run for a couple minutes and then drain.



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Old 06-04-2018, 01:58 PM   #3
Harold
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The check valves were installed backwards.
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Old 06-04-2018, 02:26 PM   #4
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Quote:
Originally Posted by Harold View Post
The check valves were installed backwards.



Ah Ha! That would do it. Does it sound like yours "spray" or just blast a hose stream?


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Old 06-04-2018, 05:08 PM   #5
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Default Check valves

It sounds like spray. I canít believe after 19 years nobody fixed it Looking at old work orders under warranty, no complaints.onthe flush outs
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