Recommended Sewer and Gray Water Connections for RV Permanent Location with In-Ground Tanks

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Question:

I have my rv set up permanently and want to use two sewer hoses from the rv. I realize I need a y fitting to attach to the camper. I want to dump my black water tank in one tank I have installed in the ground and my gray water in another. I would love to leave two hoses hooked up all the time. I need a yinch fitting with manual shutoff. Is there such a thing?

asked by: Eric

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Expert Reply:

For a permanent connection if you want the wye fitting you mentioned like the Double RV Waste Valves - Elbow - Rotating - 3" and 1.5" Hubs to 3" Spigot # T81 and then the Double RV Waste Valves - Elbow - Rotating - (2) 3" Spigots to 3" Hub # T85B. The actual manual handles will give you the manual shutoff you are seeking and they can be rotated so they don't come in contact with the other handles when installed together.

It is recommended to use PVC instead of hoses for as much length as possible and then you can use the Valterra ABS Solvent Cement - 1/4 Pint # A05-0303 for the connection between the ABS parts and you can use the Valterra Hose Adapter w/ 3" Bayonet and Swivel Lug Fitting - Black # F02-2029VP you asked from if you need to add flexible hose and bayonet fittings or to connect the PVC.

Another option is to replace the Wye fitting and run the two lines completely separately. For the gray water you can use the Valterra Waste Valve for RV Gray Water Tank - 1-1/2" Diameter - Hub to Hub # T1001B and for black-water the Valterra RV Sewer Slip Hub with Flange - 3" # T1005. For permanent setups with separate tanks, the more basic with PVC pipe is the route I recommend. This will allow you to use basic elbows and pipe to give you the single manual valve for each tank and will take the possibility of getting any black water in the gray water tank.

expert reply by: Jason S

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Answer 1

The Valterra RV Waste Valve, part #T1001B has an inside diameter of 1.9 inches and the outside of the port measures 2.37 inches. I went to our warehouse and measured the waste valve for you. I have attached a photo of the valve with the dimensions…

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Answer 2

The Double RV Waste Valves part #T38 has rotating valves on both the black water 3" hub outlet and the grey water 1-1/2" hub outlet whereas the Double RV Waste Valves part #TR38 only has a rotating valve on the grey water…

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Answer 3

The difference between the Valterra RV Waste Valve #T60, and the Valterra RV Waste Valve #T60A, is that #T60 is a 3" Hub, and #T60A is a 3" Spigot. The difference between a spigot and a hub, is that a spigot is something that is to…

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Answer 4

The difference between these models is the connection points for the black and gray water pipes. A hub will fit over a pipe while a spigot will fit inside of a pipe. You'll just need to choose the correct connection type for your current…

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Answer 5

The standard size of a water drain valve for grey tanks on most RV's is 1-1/2". For this 1-1/2" drain valve, I have three options for you to consider. The first option is the Valterra Waste Valve for RV Gray Water Tank part #T1001PBC.…

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Answer 6

Valterra only has black handles available for their waste valves like the Valterra Waste Valve Body #TC372 that you referenced. You might spray paint the gray water handle gray to make it easy to identify as the gray water valve.

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Answer 7

In order to determine the correct waste valve for your 2012 MVP Destiny 5th Wheel you will need to just figure out weather or not the valve you're replacing slid over your pipe or into your pipe. If your valve slid into your sewer pipe, then…

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Answer 8

I went out to the warehouse to take a measurement of the 3" diameter pipe on the Double RV Waste Valves #T38C and found that without the cap it measured 5" in length, as you can see in the accompanying photo I've added for you. I have…

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Answer 9

We have a wide selection of valves, many of which are the same as used by the OEM's. While I do not have the abilty to pull build sheets and the know the part number used by the OEM I am certain we can locate something that will work. If you are…

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Answer 10

You should be able to tell which Valterra Double RV Waste Valves you need by inspecting your current connection points. The one end with the lugs on it is the same on all 3 parts so you simply need to determine if you need hubs, spigots, or a…

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Answer 11

The Valterra #T38 Double RV Waste Valve isn't travel trailer or valve brand specific. As long as the existing black water drain is 3 inches and the gray water drain is 1-1/2 inches in diameter, the Valterra #T38 would be compatible. The ABS…

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Answer 12

The Double RV Waste Valves #T68C and the Bristol Double RV Waste Valves #34466ND17AAR are both going to serve the same purpose. The only real difference between the two is where they are manufactured. The Bristol Double RV Waste Valves #34466ND17AAR…

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