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Old 06-12-2015, 07:49 PM   #1
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Black water flush question????

What does one do when attempting to use black water flush inlet and the hose has no threads. Just came back from quick trip up north. Went to flush my black tank at dump station. Hose had nothing on hose end. What do you folks do in this situation?

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Old 06-12-2015, 07:52 PM   #2
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Wait till you get home or where you can use your hose.


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Old 06-12-2015, 08:04 PM   #3
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I ran into this situation so many times. I had reached my wits end.

I went & bought the cheapest 20ft hose I could find @ Wallyworld, wrapped both ends with red tape to mark it as non-potable, and I am done fooling with this issue. Just store it seperately from your drinking hose to avoid contamination.

Like the Boy Scout motto: Be prepared!
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Old 06-13-2015, 05:32 AM   #4
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Appreciate both replies but....

Don't want to wait to get home, would like to dump black tanks at site. Also, I have a "black water hose" I carry but if you are at a State Campground or other campground that does not have water and sewer at the individual sites your are relegated to whatever is available at the dump station.
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Old 06-13-2015, 05:40 AM   #5
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Is the flush something you do every time? I haven't found that necessary. Someone taught me a great trick in the forums - when you're emptying your black tank (which you've filled with water to 100% full before flushing) you let it drain completely (don't close the drain) then lift the "slinky" above the drain pipe and open the grey tank (also full to 100%) for say 5 seconds and close the grey. That just pushed a few gallons of water back through your blank tank and when you drop the slinky you'll get an extra good flush/rinse. Then complete the grey process as usual.

I also make sure that after draining the tanks, I put some water (couple gallons or so) in the toilet with a Chem pack (some people don't like that) and some water and grey tank sanitizer in each of the kitchen, bath and shower drains. Controls things very well. Has made the backflush far less important.

Good luck!!
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Old 06-13-2015, 05:45 AM   #6
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Flushing the tank should not be necessary if you are using enough water. Pull the valve and then put a gallon or two in the toilet and pull the valve again. When done and valve is closed put some water back into the black tank. Jim
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Old 06-13-2015, 07:38 AM   #7
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There is a gizmo from Camco called the water thief or hose thief. Cost about $4. It slips over the end of the cut off hose. You may have to hold it on depending on pressure. It works great and we use it quite often.
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Old 06-13-2015, 07:49 AM   #8
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Or use a hose clamp so you don't have to hold the water thief on.

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Old 06-13-2015, 09:09 AM   #9
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I have a little plastic bag of different size male hose ends with with a simple screw clamp and a small screw driver. It only takes a minute to put one on.
The ability to follow instructions is highly underrated.
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Old 06-13-2015, 09:13 AM   #10
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I carry a slip joint wrench and just take off the dumpstation hose and put on my own. Of course I replace the original hose when done.
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Old 06-13-2015, 09:53 AM   #11
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We carry a flexi hose in the rear bumper with one section of sewar hose. When I run into this I detach the dump station hose, attach my flex hose and proceed to clear her out. Then reverse. That said I usually try to end any trip at a full service campsite and do all that at the site the last morning. Works well for us, can't use the toilet on our last leg home, but no big deal.

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Old 06-13-2015, 11:32 AM   #12
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Not necessary to use the spray after every outing--just good to do so on a regular basis. As suggested, if you are traveling every day for several days, invest in a a full service site so you can hook up that second, sewer use only hose that you always with you!
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Old 06-13-2015, 11:54 AM   #13
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We add our dishwater to the black tank through the toilet the last day before we leave a campground (if there's room in the tank...making sure the dish water doesn't have a spoon or fork hiding in it) to add water volume to the black tank. We don't use the rinse system every time either...usually at our last stop of a trip, and if there's no line to dump...and, of course, if there's a threaded hose at the dump station (and many times there is not).
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Old 06-13-2015, 12:33 PM   #14
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Old Trick

Another old trick (my 87 has no hose rinse provision for the black tank) is to put a bag of ice cubes down the toilet after emptying the tank at the campground. The solid cubes will scour the inside of the tank and get the junk that's stuck broken free. Then the cubes melt and it's all liquid happiness that you can dump at the next stop six hours later.

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