Grey and Black tanks

macxcal82 · 07-11-2019, 05:27 PM

I have a Eagle HT 314 - under the TT is 2 pulleys one grey and 1 black both in separate locations. Wondering where I hook the sewer to. Assuming it’s the black one for the black tank. Problem is I’m seeing all these videos on using the grey tank to dump the black tank and I have no idea on how to do that. Currently camping with the black hooked up to the sewer closed and the grey closed up also in the close position. The control panel shows 2 grey tank readings. Assuming that I dump the black when it’s full and transfer over the hose to the grey to dump that as well? Need some help guys or a video link specific for my TT. Thanks!

Big1 · 07-11-2019, 05:36 PM

Underneath by the pull valve should be a 3" 1/2 or 4" black tubing coming under your TT, you put your sewer holes on the end of that.

macxcal82 · 07-11-2019, 05:40 PM

I see those and I’m hooked to the black tube. Is the other black tube with the grey handle the grey dump tank?

Big1 · 07-11-2019, 05:43 PM

Yes they will be the same you want to dump your black water first or pull the black valve and then put the gray one last, to wash the inside of your sewer hose. Their is only one place that you put the sewer hose to and the rest is to just pull the valves on at a time.

macxcal82 · 07-11-2019, 05:46 PM

Okay so dump the black first and then use the hose to flush the tank. Once it’s good to go, switch the hose to the grey and repeat the process minus the flushing?

Big1 · 07-11-2019, 06:01 PM

You should have just one place where you put the hose to and then from their all it's needed it to pull each valve out, it's a good idea if you have it to have a clear elbow hook to your sewer hose so you can tell when all of the black water comes out clean.

macxcal82 · 07-11-2019, 06:20 PM

I actually have 2 valves where I can hook the hose to. See attached. The hose is hooked to the valve that has the black pulley and the closer valve has a grey. I guess I’m confused because there is only 2 pulleys , grey and black which are both separated

Big1 · 07-12-2019, 12:53 AM

Oh I haven't seen nothing like that well then this is beyond me thank you for the pics, that wouldn't be right because you need to clean out the sewer hose once you pull the black tank valve.

fr8erfxr · 07-12-2019, 01:50 AM

The forward hookup is for the main black and gray water tanks. The rear hookup is just for the gray tank for the outside kitchen. There is a gray valve handle for the forward gray tank forward of the drain under the slide I believe. (I agree, it's in a bad place.) Its kind of hidden. If I had access to my TT right now I'd take a picture.

namusmc65 · 07-12-2019, 05:04 AM

A lot of the newer rigs with holding tanks in the front and also the rear of the rig for a rear kitchen for example, have dual dump lines. You can also buy two hoses and put them together with a Y connector and run one hose to the dump station or sewer inlet connection. Some campgrounds actually have two sewer connections for these rigs so they must have been around for awhile. You might ask the campground when you make a reservation if they have a site with dual sewer hookups.

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