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Old 09-01-2015, 10:41 PM   #1
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Grey Water tank flushing system?

Our factory provided "turbo flush" for the black water tank works great, and I can almost always believe my indicators for the black tank.

Has anyone installed a flushing system for their grey tanks, and if so, what brand or make?

Also, where did you find was the best location to install it?

Anyone using an additive for cleaning the grey tanks instead, and if so, what are you using?

Thanks
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Old 09-01-2015, 11:04 PM   #2
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When starting with empty tanks,I dont do anything for a day or so,otherwise all the treatment would end up in the discharge line. After a day, I dump 1/2 cup of tide liquid and 1/2 dose of the theford blue black tank liquid to the grey. The black gets a full shot of the liquid and whatever was not put into the grey tank.Ive been doing in that way since the mid 1970's and never had any kind of waste tank issues.I usually spray the valves and shafts with Fluid Film, which is a lanolin aerosol. I use this same product on hinges,locks,everything. I have never had to replace a dump valve,never.I ran my Kenworth conversion MH for almost 20 years doing it this way without an incident.
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Old 09-02-2015, 12:15 AM   #3
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In my 16 years of owning RV's, I have never worried about my grey tank. When I am connected to sewer, I leave the valve open. Never add soap or anything else.


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Old 09-02-2015, 12:19 AM   #4
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I might consider a flush for the kitchen sink since we aren't 100% in wiping plates and stuff off fully.

But, I've been using this stuff for a while and it really cuts back on gray (and black) tank odors.

https://www.amazon.com/gp/aw/d/B005X...?ie=UTF8&psc=1
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Old 09-02-2015, 01:08 PM   #5
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I would also like to know about grey tank flush. The worst smells, according to RV pros, is the grey. Even leaving the tank open in campgrounds will not stop your sensors from gumming up and giving you false reading. We use dishwasher detergent with a sink full of hot water before we travel. That seems to clear the sensors. Remember dishwasher not dish detergent.
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Old 09-02-2015, 03:22 PM   #6
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You can install an aftermarket black tank flush, what is to stop you from using the same product on a gray tank? It's supposedly a pretty easy install- but I foolishly paid a RV Service Center to install mine and paid dearly in hourly rates.
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Old 09-02-2015, 06:56 PM   #7
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Not to argue, but I have far more issues with my black tank sensor than my grey tank. Flushing the tank usually resolves that. Smell hasn't been an issue for me.


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Old 09-02-2015, 07:39 PM   #8
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Camco 40123

I installed a Camco 40123. It is easy to install if you can get to the tank. The hose that comes with the kit is kinked and not usable so plan on buying new hose. I think is the most useful when you are sitting in one place for a while and the solids get a chance to settle. It did not improve the reliability of my sensor levels.

Regarding smell: Have you checked your anti siphon trap vent which is usually under the sink?
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Old 09-03-2015, 11:52 AM   #9
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I stick a flexible wand on hole the the output of the gray water tank and hold the drain hose underneath. I move it around and the gauges read 0 after.
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Old 09-04-2015, 02:30 PM   #10
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A previous travel trailer I owned had the same flush on both black and grey tanks. The tanks were visible from underneath the trailer so there was a simple hose connector on the side, and I assume a jet like sprayer on the inside. I used it because it was there. I never noticed a smell from the grey tank on this trailer or other units I've owned until this past trip when the one-way vent under our sink went bad, whew that was the nastiest smell!! Of course when all is working correctly, no smell comes up from the drains, etc.

However you already stated that you want one, simply asked if you could install one....and I would say yes, of course you can. I would expect your dealer could assist you in obtaining the same flush system that is on your black tank and install it on your grey. Then you could flush both tanks the same way and feel more confident that your tanks are nice and clean!

Let us know how it turns out.

Tom
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