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Old 02-12-2015, 04:12 PM   #1
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Black Tank Flush

So on my new trailer, the outdoor shower is located right next to the black tank flush. We never use the outdoor shower. Would it work to take the shower head off and put a 1/2" NPT to garden hose connector on the hose then using a backflow preventer, use the outside shower to flush supply the water for the flush?

My thoughts are that even if camping without water, we could use whats left in the fresh water tank to flush the black tank. I know the pressure would be less but better than nothing.

Also, would there be any problem or advantage/disadvantage to using hot water for this flush? Again if we are leaving, we could use the already hot water to flush out the black tank.

So let's hear the thoughts on this.
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Old 02-12-2015, 04:16 PM   #2
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Interesting concept!
I don't know why it wouldn't work jay.
Hot water may be a plus!
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Old 02-12-2015, 05:18 PM   #3
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Know guys that have their outside shower and do the hot water. We always stay where full hook ups as we work when in the camper. We open the FW and let it drain but good point on your topic.

I haven't cause I use mine a lot to rinse off the work boots before putting on the boot dryer.


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Old 02-12-2015, 05:33 PM   #4
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Indymule,we use our (OSS) to supply (Pink Stuff) to the black tank flush for winter,so we are already plumbed for (Garden Hose). Just Mix the (H & C) before you supply to the BTR. Camp On!! Youroo!!
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Old 02-12-2015, 07:12 PM   #5
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I removed the shower head and changed it over to use on the black tank flush when we got ours new. I also disconnected the hot water line and capped it under the cabinet. Never used it as its on the neighbors side anyway.
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Old 02-12-2015, 07:32 PM   #6
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You could do it. I asked my dealer last year and they said that by law they could not connect fresh water to any kind of black water. If your back flow valve failed it might get ugly.
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Old 02-12-2015, 10:58 PM   #7
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Quote:
Originally Posted by gooiebob View Post
I removed the shower head and changed it over to use on the black tank flush when we got ours new. I also disconnected the hot water line and capped it under the cabinet. Never used it as its on the neighbors side anyway.
Bob
That's interesting. I am curious why you capped off the hot water line? and since it is capped off, will the water drain out of that line or will it create a vacuum and hold water creating a problem with winterizing.
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Old 02-12-2015, 11:50 PM   #8
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I don't know why they don't connect a one way valve drain from the grey tank into the black water tank. Then ud have soapy water flushing ur black tank and on pulling up stakes u could turn the shower on to drain what's left thru both tanks. But good thought TANKS a lot!
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Old 02-13-2015, 12:03 AM   #9
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Stink tank ,think tank here. I was planning on putting a brass Y valve with two separate shut offs on the inbound line with a quick connect to the supply hose and just leave the other two hooked together ,so I can turn off the trailer fresh side and open the flush side when needed. Anyone do that yet?
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Old 02-13-2015, 06:35 AM   #10
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Mojojojo..I have had my flush hooked up like that for a few years now.never had any problems.brass "Y" with shutoffs at the fw inlet .short hose to the bt flush.
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