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Sewage connection adapter

So I am going to flush the black and grey tanks.

I bought the camco rhino hose. I thought it was just standard size.

But I think it is not. Standard is 3 inch. But the connector is definitely bigger than 3.

What adapter can I use to get it connected?

1991 Grand Villa U300

Re: Sewage connection adapter

Reply #1 –

You need a Thetford to Valterra adapter.  Should be found at most RV supply stores, and from the usual online vendors.

Valterra T05-2285VP Universal Adapter - Thetford to Valterra - Walmart.com -...

Amazon.com: Valterra T05-2285VP Universal Adapter - Thetford to: Automotive

As an Amazon Associate Foretravel Owners' Forum earns from qualifying purchases.
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Sewage connection adapter

Reply #2 –
Thanks
1991 Grand Villa U300

Re: Sewage connection adapter

Reply #3 –
Tell me if I'm missing something here ? That adapter won't work on the coach connector as the both have 4 lugs. The adapter should have 4 hooks and 2 lugs, it looks backwards to me.
88 Grand Villa 36' ORED 3208 (throwaway)Cat.
 Build # 3150
Happiness is the maximum agreement of reality and desire.

Re: Sewage connection adapter

Reply #4 –
Quote from: Olde English –
That adapter won't work on the coach connector as the both have 4 lugs. The adapter should have 4 hooks and 2 lugs, it looks backwards to me.
The adaptor being discussed doesn't require 4 hooks on the Thetford side - 2 hooks work fine to connect to the white "male" Thetford dump pipe.  Many Thetford style "female" connectors only have 2 hooks, although you will occasionally see some with 4 hooks.

The orange "female" sewer hose end connector has 4 hooks and wants 4 "posts" (standard Valterra configuration) which are supplied by the "male" side of the adaptor.
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Sewage connection adapter

Reply #5 –
Bought these parts. Hope one of them will fit
1991 Grand Villa U300

Re: Sewage connection adapter

Reply #6 –
Quote from: Running Odometer –
Bought these parts. Hope one of them will fit
You should be "GOOD To GO"......so to speak.    :dance:
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Sewage connection adapter

Reply #7 –
The adapter on the cardboard is the thetford to Valterra that you want. Be careful those white hooks snap off.once on. The Valterra connector will work. Leave the adapter on your coach.
1999 U270 40 #5518
USN. USPS.

Re: Sewage connection adapter

Reply #8 –
Some many of us have cut off the white Thetford on the coach and installed the more common Valterra new end.  We know that the Valterra equipment is sold almost anywhere, and at many rv campgrounds. 
I cut mine off, and "upgraded" to the black ends.  In addition some install a new shut off valve if they have room to still close the bay door.  I carry a portable shut off, in the event that I ever find one of my black or grey valves is leaking or not closing.  Then its easy to add the 3rd portable one, and then schedule my rebuild.
Dave Cobb
Buckhorn Lake Resort The Club, #6202, Kerrville TX
check the map.  I do rent it out when I am traveling!
2001, U320, 36' #5887, in Kerrville, FT Club #17006, (7/23 to present)
2024 Jeep Grand Cherokee L, Summit, white
EX: 98 U295, 36' #5219, (mid door), (4/13-10/23)
EX: 93 U225, 36' (4/11 to 4/13)

Re: Sewage connection adapter

Reply #9 –
Quote from: Texhub –
The adapter on the cardboard is the thetford to Valterra that you want. Be careful those white hooks snap off.once on. The Valterra connector will work. Leave the adapter on your coach.


I agree about the Valterra adapters breaking easily. Make sure you have at least a couple spares. I also have found that they don't always seal that good.
1995 U320C SE 40'
Jeep 4x4 Commander - Limited - Hemi
"The Pack"  Yogi and Diesel our Airedales -  Charlie our Boxer/Akita mix. Gone but NEVER forgotten Jake our yellow Lab.
NRA Law Enforcement Firearms instructor - Handgun/shotgun
Regional Firearms instructor for national Armored Transp. Co.

Re: Sewage connection adapter

Reply #10 –
Well, I guess I have to cut the thetford out.

There is not enough space to add a adapter then an 90 degree elbow.

It is too tight.
1991 Grand Villa U300

Re: Sewage connection adapter

Reply #11 –
What is the part for the updated sewage end?

Need some keyword to search for.

Thanks
1991 Grand Villa U300

Re: Sewage connection adapter

Reply #12 –
https://www.etrailer.com/RV-Sewer/Valterra/T1029-2.html?feed=npn&gclid=EAIaIQobChMI1vvJwb6e6wIVxkXVCh0Tig06EAQYBCABEgIiPvD_BwE
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Sewage connection adapter

Reply #13 –
Thanks.

Too bad nobody is open tomorrow. I have to wait for next week.
1991 Grand Villa U300

Re: Sewage connection adapter

Reply #14 –

We removed the Valtera end on our sewer hose and put a Thetford end in it with a hose clamp. This is our main hose and if we need longer we add regular Thetford ended hoses. No need for adapter or cut off MH Thetford connection. In some ways the Thetford fittings are stronger and more secure. Simple solution to a messy issue that has worked for us for 20 years. We carry a spare Thetford end just in case...

Amazon.com: Thetford 01665 Curved Hose Adaptor: Automotive

As an Amazon Associate Foretravel Owners' Forum earns from qualifying purchases.

Re: Sewage connection adapter

Reply #15 –
Thanks!

How do you connect the hose?

Using a clamp?

Or
Other side is a common valterra connector?
1991 Grand Villa U300

Re: Sewage connection adapter

Reply #16 –
You have to spread the hose to fit. A tool is available or you can use a hair dryer and muscle.
1993 U300 40ft GV SE
Build # 4344

Re: Sewage connection adapter

Reply #17 –
Yep, use hose clamp around the Thetford motorhome end.

The other end is normal Valtera.