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Old 10-22-2012, 01:59 PM   #10
dakingsella
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Join Date: Nov 2011
Location: Clackamas, OR
Posts: 41
I have a 2012 Cougar and use the black tank flush every time I dump the black tank. So far no problems! I use a pressure regulator on the Park faucet when I am flushing the tank, I read in the Keystone Owners Manual that water pressure should not exceed 40 psi on the flush line.

I run the flush about 15 minutes after each dump. It takes about 10+ minutes for the water to begin running clear. I wouldn't own an RV that didn't have a black tank flush system installed.
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Dave
2012 Cougar 327RESWE & 2011 Dodge Ram 2500 HD LB 6.7L Cummins
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