311bhs Gate Valve size

[JackSwade]

Hello all,

New 311BHS owner, very glad to be a part of the community.

Looking to add some gate valves to the end of my grey / black drain pipes. Amazon sells different diameter sizes.
Can anyone confirm the right gate valve size? mabey 4 inches??

[Calbar]

Hello all,

New 311BHS owner, very glad to be a part of the community.

Looking to add some gate valves to the end of my grey / black drain pipes. Amazon sells different diameter sizes.
Can anyone confirm the right gate valve size? mabey 4 inches??

They should be 4". The outlet on my 297RSTS is 4" and this is pretty standard for RVs.

Rob

[FT4NOW]

Its 3", I believe RV standard size gate valves come in 1.5" , 2" and 3".

Sent from my SM-G950U using Tapatalk

[ThePowells]

The parts site is only showing 1 1/2 and 3" waste pipes for your model. If you are like the others and want to add one so that the left over liquid doesn't give you a surprise when you pull off the cap, it will be a 3". All waste hoses connect to a 3 inch outlet, or (disclaimer) at least I haven't found or seen anything different.

[boyscout]

Looking to add some gate valves to the end of my grey / black drain pipes. Amazon sells different diameter sizes.
Can anyone confirm the right gate valve size? mabey 4 inches??

The size you need is the one that's sold out.

(I'm only half-kidding... the last couple of times I looked on Amazon.ca they were not in stock. Lotta new trailer owners out there buying up things we need.)

It's a seriously-life-improving idea to install these, don't give up on it. Good luck.

[kitesurfer]

On my 2020 311bhs it's 3". Valterra Black T58 Twist-On Waste Valve is what I have installed