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Old 01-24-2015, 04:29 PM   #1
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using full hook ups

Taking the Jayco out for the first time with full hook ups available. My question is when the sewer hose is hooked up do you leave the black water valve open the whole time? What about the Grey tank? Or do I just use it to dump at the end of my weekend?
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Old 01-24-2015, 04:34 PM   #2
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Black closed untill full enough to dump ( watch level gauge )
you can leave gray open,but close the gray when you open the black tank Drain. after the black drained,close valve and open the gray,that will wash the rest of the Stuff, out of the line... Sure you will get more ways to do this,but as far as i know this is correct..
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Old 01-24-2015, 04:41 PM   #3
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Thank you very much. I do appreciate the input.
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Old 01-24-2015, 04:53 PM   #4
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Sometimes it's good to wait till its at least 3/4 full before you dump so you have enough water to help push the solid waste out. If u r just going for a weekend you can dump on your next trip or run your toilet till you hit @ 3/4 full then dump before you leave..
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Old 01-24-2015, 05:06 PM   #5
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I typically leave the gray closed until I'm ready to dump the black so that I know I have enough water to wash the stuff out of the hose. Generally at least 3/4 full before I dump, but as others have noted too, watch your gauges - you don't want that mess overflowing into the TT
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Old 01-24-2015, 05:40 PM   #6
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I carry a 5 gal. Bucket and after I drain the black tank I leave that valve open and pour that 5 gal. Of water for a good flush out. Close that valve and drain my gray tank. DON'T forget the rubber gloves!!!
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Old 01-24-2015, 06:07 PM   #7
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I leave them both closed. You want the water pressure built up to help flush out solids in the black tank. Then I prefer the water pressure from the gray tank to help flush out any excrement in the sewer hose.
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Old 01-24-2015, 06:53 PM   #8
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Excellent information, guys. Thanks.

We've only been to one camp ground with full hookups and I opened both tanks as soon as I hooked up. I now know better.

Ken
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Old 01-24-2015, 08:53 PM   #9
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Quote:
Originally Posted by AKGperson View Post
Excellent information, guys. Thanks.

We've only been to one camp ground with full hookups and I opened both tanks as soon as I hooked up. I now know better.

Ken
You might have a real 'devil's tower' in the black tank.
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Old 01-24-2015, 09:40 PM   #10
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I too leave both valves closed till I choose to dump. Some times I dump with less in the tank if I notice an odor outside or if I'm going to be away for a couple days. I use a clear sewer hose fitting to see how clear the liquid is coming out and will flush the black tank a couple times with water till it runs clear. This helps keep the sensors working properly. I also add about five gallons of water too tank after I close the valve to help prevent the sh** mound that can build up in the tank and I add an RV chemical pack.
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