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When to dump?

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Grayotter View Drop Down
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Post Options Post Options   Quote Grayotter Quote  Post ReplyReply Direct Link To This Post Topic: When to dump?
    Posted: 27 Mar 2015 at 11:57am
i believe it's recommended we dump our gray or black water when they're 3/4 full. Is there any reason for this?
I frequently camp in parks with no dump site. When one's available I use it.
Love2 1der
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Tars Tarkas View Drop Down
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Post Options Post Options   Quote Tars Tarkas Quote  Post ReplyReply Direct Link To This Post Posted: 27 Mar 2015 at 12:52pm
It probably mostly has to do with the fact that a more than full black tank, or grey tank for that matter, is not something you want to have to contend with.  That and most level indicators are approximate, if they work at all.

TT
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Post Options Post Options   Quote furpod Quote  Post ReplyReply Direct Link To This Post Posted: 27 Mar 2015 at 12:56pm
The more full, the better the draining action.. and if you need to move some solids along.. better is BETTER..  ;)

If you aren't "full"ish, before heading to the dump station, just add water to the holding tanks to get them full enough..
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Post Options Post Options   Quote techntrek Quote  Post ReplyReply Direct Link To This Post Posted: 27 Mar 2015 at 4:01pm
Yup, its the solids.  It is ok to leave your gray tank wide open if you have full hookups, or to dump it at the dump station even if it is barely full.

Black tanks, if dumped when they are too low, will build up a mound of stuff near the drain pipe that will end up drying rock solid, with no good way to get rid of it.  That will allow further stuff to build up until you have major problems.  

There are 3 rules to prevent problems with the black tank.

Rule #1, after adding chemicals via the toilet after dumping, add 6 full toilet bowls of water.  That ensures that anything that may be left behind will stay wet.

Rule #2, always fill the toilet bowl at least 2/3 full for any #2 trips to the bathroom.  You may need to flush twice, depending. (there is a reason this is rule #2, lol).

Rule #3, never dump the black tank until it is at least 2/3 full.  Since the sensors are almost always useless sometimes the best you can do is wait until you see the pipe below the toilet start to fill up (at that point you usually have one more flush before it is full).  Then you know it is time.
Doug ~ '10 171 (2009-2015) ~ 2008 Salem ~ Pod instruction manual
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techntrek View Drop Down
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Post Options Post Options   Quote techntrek Quote  Post ReplyReply Direct Link To This Post Posted: 27 Mar 2015 at 4:47pm
Added to the pod manual.     
Doug ~ '10 171 (2009-2015) ~ 2008 Salem ~ Pod instruction manual
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Post Options Post Options   Quote Podster Quote  Post ReplyReply Direct Link To This Post Posted: 27 Mar 2015 at 4:55pm
Right, you want to make sure everything is floating good before you pull that trigger!
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Post Options Post Options   Quote CharlieM Quote  Post ReplyReply Direct Link To This Post Posted: 27 Mar 2015 at 5:14pm
Originally posted by techntrek


Rule #3, never dump the black tank until it is at least 2/3 full.  Since the sensors are almost always useless sometimes the best you can do is wait until you see the pipe below the toilet start to fill up (at that point you usually have one more flush before it is full).  Then you know it is time.


Doug,

Almost? You're giving the probes far too much credit
Disapprove
Charlie
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techntrek View Drop Down
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Post Options Post Options   Quote techntrek Quote  Post ReplyReply Direct Link To This Post Posted: 27 Mar 2015 at 5:16pm
I've had some success with the fresh tank, but for the other tanks and the battery, you are right!
Doug ~ '10 171 (2009-2015) ~ 2008 Salem ~ Pod instruction manual
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johnmaci View Drop Down
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Post Options Post Options   Quote johnmaci Quote  Post ReplyReply Direct Link To This Post Posted: 27 Mar 2015 at 7:32pm
Here is a great video on calibrating your sensors. I have done this and it works pretty darn good.
https://www.youtube.com/watch?v=DvVGBFdJ_vo

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CharlieM View Drop Down
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Post Options Post Options   Quote CharlieM Quote  Post ReplyReply Direct Link To This Post Posted: 28 Mar 2015 at 12:59pm
Originally posted by johnmaci

Here is a great video on calibrating your sensors. I have done this and it works pretty darn good.
https://www.youtube.com/watch?v=DvVGBFdJ_vo



Only good if you have the exact same monitor. The video shows a Newmar MH. And the method assumes the measurement points are spaced correctly and equidistant in the tanks. Most, if not all, are not. Certainly not applicable to the RPOD monitors.
Charlie
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