Grey tank operations - best practices - Page 4 - Escape Trailer Owners Community

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Old 08-19-2016, 02:36 PM   #31
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I have found that opening the dumping end of the tank and shoving a flexible black water tank cleaning hose into the grey tank works wonders to flush it out. Be fore warned that it takes a little while for all the water you put into the tank to come out at first so be ready to shut off the the valve so you don't get to much spillage.
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Old 08-19-2016, 02:44 PM   #32
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Didn't I read somewhere there is a vent of some sort hidden in one of the walls somewhere, I don't remember it's purpose and have yet to encounter it though so I my rememberer may be faulty again.
Yes, on the 19 at least, there is a hidden vent inside the trailer. It uses a "cheater vent" for the bathroom sink. It is located on the wall between the bathroom and the closet. It has the potential to leak tank odors to the trailer interior. Normally it's not a problem.

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Old 08-19-2016, 02:54 PM   #33
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I noticed an increase in outgassing once I got past 65.
It's the result of all the green vegetables "they" tell you to eat,
so you can indeed live long and prosper.
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Old 08-19-2016, 03:14 PM   #34
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The evidence for probiotics is marginal at best in humans for the various indications which folks claim they are useful. There are very few well designed randomized clinical trials and where there is probiotics typically see no significant benefit over placebo.

I think probiotics in holding tanks is even a greater stretch. Reduce the length of time with contents in the tanks, reduce the amount of organic solids in grey tank if possible, flush and use a tank deodorizer if needed.
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Old 08-19-2016, 03:45 PM   #35
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Originally Posted by padlin View Post
Didn't I read somewhere there is a vent of some sort hidden in one of the walls somewhere, I don't remember it's purpose and have yet to encounter it though so I my rememberer may be faulty again.
Yes, in some models. It is apparently supposed to be an air admittance location for the grey waste system, which would mean it should have a one-way valve on it, so air can go in to allow wastewater to flow but gases don't come out... but the end is just open (and high enough that it doesn't overflow).

Previous discussion thread: How does plumbing vent system work?
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Old 08-19-2016, 04:13 PM   #36
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D So, I went to Ebay and found a 5 foot length of medium diameter, thick wall, surgical tubing for about $15 US. Attached the tubing to a garden hose with an on-off valve, lubricated the tubing with some dish soap and gave the grey tank an enema. There are 3 90-degree turns to snake the tubing through to reach the tank but it worked and I ran the hose at full pressure for 5 minutes. The results were excellent but the procedure was gross with all kinds of mold and sludge coming out the tank. Bottom line - now we try to remove all food before washing dishes and will be switching to low suds soap. And there is always the surgical tube enema if the problem comes back.

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The Flush King has worked well to rinse out the tanks, and no worry's about the outflow. I try and rinse them out whenever we get stuck paying for full hookups.
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Old 08-19-2016, 04:31 PM   #37
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We've never experienced those type of buildups/odors, etc. in the grey or the fresh tanks folks have discussed on here. I've changed 30 yr old tanks that have always been in the SW and they're clean. It may be a by-product of the climate in PNW and the dry desert or less humid climates don't experience these buildups/odors. We aren't particularly careful with what goes in the grey tank, but do keep them dumped and dry between trips, so really thinking this is more a climate contributor if your tanks are getting fouled.
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Old 08-19-2016, 04:58 PM   #38
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After sanitizing the fresh tank and lines with bleach in the fall and spring, I dump that water into the grey, add some more bleach to it, fill the rest of the grey tank with water and let it sit for a few days. That has seemed to clean all the gunk out and keep our grey tank from ever smelling. I sometimes do the same for the black and it seems to (at least until the first flush with toilet paper) clean off the sensor probes.
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Old 08-19-2016, 06:37 PM   #39
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Originally Posted by Brian B-P View Post
Yes, in some models. It is apparently supposed to be an air admittance location for the grey waste system, which would mean it should have a one-way valve on it, so air can go in to allow wastewater to flow but gases don't come out... but the end is just open (and high enough that it doesn't overflow).

]
You're absolutely correct, , mine doesn't have a cheater valve

Difficult to access the area. If I hadn't added a second door under the furnace I wouldn't have been able to squeeze my head partly in and confirm that there isn't even a cheater vent as opposed to venting to the exterior, just an uncapped pipe. As Brian points out, that can allow gases from rotting food etc., directly into the interior living space.

I don't know of any jurisdiction that would allow for this situation. A small line to a skin vent or a cheater vent would be preferable to the existing situation. Certainly the wrong mix of food waste etc. with high temperatures could vent some nasty smells to the interior.

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Old 08-19-2016, 07:10 PM   #40
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Have you talked to ETI about this vent? Could it be an error in the build rather than a design flaw?
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