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Old 07-27-2009, 04:49 AM   #57
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A couple of comments -- if you do not have an inlet for flushing your tanks (which we had added to our 2006 Safari 25SS) you can get a simple adaptor that has a hose connection (like to cheat on draining the greay water) -- you will need to make a short female to female hose to connect to the dumpstation hose. Anothr option that we have used is a clear sewer hose connector that allows hookup -- nothing like looking at your stuff. '' :-)

If we don't have time, are on a long trip where we will be dumping often, or the dump station hose does not a male hose connection, we dont worry about it.

Only one comment to those above -- iv we are going a few weeks between trips I always add at least two complete bowls of clean water along with the blue stuff -- I like the formaldihide based stuff as well.
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Old 07-27-2009, 11:11 AM   #58
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Quote:
Originally Posted by lvcat2004 View Post
QUESTION:

If you have a sewer hook-up at RV site, but have to dump/flush at a dump station (so that you don't use the potable water supply), why even bother emptying black tank at the camp site?? Might as well close the gray water valve, pack-up the sewer hose the day before and proceed directly to the dump station when you leave and do the dump/flash of both tanks at the dump station....
If you have sewer hook-up at your camp site, there is no need to use the dump station. The dump station is for camp grounds (such as most state parks/national parks) that do not have individual hook-ups at each camp site. You should carry a separate garden hose (never to be used for potable water) to hook-up to your tank flush system at the camp site or where there is no male fitting on the dump station water supply. The male fittings are often cut off the hoses at the dump station so people won't try to use it to fill their fresh water tanks as they leave the camp ground.

When we have one, I have always used the sewer hook-up at our site to do the final dump and flush of the black tank. I keep a spiral green garden hose in the bumper storage just for that purpose. There have been times that I didn't have a sewer connection and had to use the dump station and the male fitting had been cut off. I simple disconnect the dump station hose and use my own and reconnect their hose before I leave.

I hope I read your question properly and hope this response is helpful. If I did misunderstand your question, I apologize for the lengthy response.
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Old 07-27-2009, 12:19 PM   #59
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Perhaps I misunderstood, because I've read a couple of times to "not use the potable water supply to flush black water tank".

I was assuming that the water supply at individual camp site WAS potable, so you can't use that to flush the black water tank, i.e. my thought to not bother flushing the black water tank at the individual sewer hook-up (except for gray), and just pack up and go to the dump station do dump/flash black water tank.

Am I misunderstanding something?? Is the water supply at individual site (usually) non-potable and do people use that to flush black water tank??

Do people fill up the fresh water tank at home and use that as postable water??

I'm a noob and I haven't understood these details yet.
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Old 07-27-2009, 12:59 PM   #60
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Quote:
Originally Posted by lvcat2004 View Post
Perhaps I misunderstood, because I've read a couple of times to "not use the potable water supply to flush black water tank".

I was assuming that the water supply at individual camp site WAS potable, so you can't use that to flush the black water tank, i.e. my thought to not bother flushing the black water tank at the individual sewer hook-up (except for gray), and just pack up and go to the dump station do dump/flash black water tank.

Am I misunderstanding something?? Is the water supply at individual site (usually) non-potable and do people use that to flush black water tank??

Do people fill up the fresh water tank at home and use that as postable water??

I'm a noob and I haven't understood these details yet.
The water hydrant at an individual campsite is potable. At a dump station there is usually a hydrant next to the dump hole to rinse out the black tank, sewer hose, etc. labeled not potable. You will also probably find a hydrant for potable drinking water a distance away. It's usually the same water, but the non-potable water is labled such because it is a good idea to take steps to keep your drinking water and waste separate, ecola and all the other little critters you know. It is also a good practice to have 2 garden type hoses, one for fresh water and one for the waste.

Interesting word potable. I think it has a long O not a O=ah as in pot. But you can put potable water in a pot and cook it? At least it is not an O=uu as in Pooh, Winnie the, which would phonetically make it Poohtable.
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Old 07-27-2009, 01:57 PM   #61
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So we probably "shouldn't" flush the black water tank at the individual site where there is only "potable" water supply.

Is that safe to say??

In that case, I think I would probably not even empty the black water tank and just wait to empty/flush at the dump station.......
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Old 07-27-2009, 03:16 PM   #62
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Originally Posted by lvcat2004 View Post
So we probably "shouldn't" flush the black water tank at the individual site where there is only "potable" water supply.

Is that safe to say??

In that case, I think I would probably not even empty the black water tank and just wait to empty/flush at the dump station.......
The black water tank does not care if you are using potable water or something else. If you are paying for full hookups, why not use it? Just use common sense and avoid contaminating your campsite with black water waste.
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Old 07-27-2009, 08:33 PM   #63
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The black water tank does not care if you are using potable water or something else. If you are paying for full hookups, why not use it? Just use common sense and avoid contaminating your campsite with black water waste.
I know THAT but that's not what I'm talking about. I have read several posts that said "don't use potable water supply to flush black water tank".

Perhaps that person meant don't use potable water "hose" to flush black water, i.e. use different hose to flush black water tank, which makes sense.

But I swear I read don't use potable water "supply" to flush black water tank, perhaps because of "possible" contamination....I don't know.
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Old 07-27-2009, 09:34 PM   #64
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I'd rather not see someone flushing their tanks at their campsite. I'd prefer they only do that at the dump station using the non-potable water supply.

Based on what I see, not many people appreciate how real the risk of cross-connection or backflow is when using these flushing devices.

And most of them won't be there to suffer the effects. It'll be their neighbor, or the next family that pulls into the site.

At least use bottled water for cooking, drinking, and brushing your teeth. And sanitize your dishes after you wash them.
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Old 07-27-2009, 09:34 PM   #65
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I think what people are saying is that you should be very careful about contamination if you are using potable water. Make sure that your backflow preventer is working properly, replace as necessary; do not under any circumstances allow overfilling; don't touch with unwashed hands any parts of the water system that might permit contamination. If you are unsure, then use a non-potable source of water, where contamination is an issue of such immediate magnitude.

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Old 07-27-2009, 09:48 PM   #66
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I hate to be a **ick about this, but you can't "make sure your backflow preventer is working properly", because it's not a testable device. You don't have any way to know if it's working or not. That's why most state plumbing boards and the ASSE don't allow them in a highly hazardous situation like flushing sewage tanks.

Yes, I know they still sell them. They also sell rat poison.
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Old 07-27-2009, 10:01 PM   #67
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I'd rather not see someone flushing their tanks at their campsite. I'd prefer they only do that at the dump station using the non-potable water supply.
What I was talking about is my 70s technology. While the trailer is still hooked up at the campsite i dump the tank, close the dump valve, let the toilet run, and dump the tank again. There are no additional tank flushing features and no chance of cross contamination.
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Old 07-28-2009, 08:50 AM   #68
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I hate to be a **ick about this, but you can't "make sure your backflow preventer is working properly", because it's not a testable device. You don't have any way to know if it's working or not. That's why most state plumbing boards and the ASSE don't allow them in a highly hazardous situation like flushing sewage tanks.

Yes, I know they still sell them. They also sell rat poison.
Good question. Here I do a visual inspection of the device, making sure that the plastic one-way valve on the inside is not broken or stuck. Then I can hook one up to any faucet, turn the water on, turn it back off, and watch. A good backflow preventer will squirt water out the sides as the faucet tries to suck water back down; a bad one won't.


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Old 07-28-2009, 09:36 AM   #69
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Well then....I wonder if there are a lot of people who flush their black water tank with potabler water supply at their camp site......
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Old 07-28-2009, 10:46 AM   #70
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Well then....I wonder if there are a lot of people who flush their black water tank with potabler water supply at their camp site......
In a word: Yes.
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