What Size Gate Valve Is Needed To Replace The Gray Tank Waste Valve

Updated 02/23/2023 | Published 02/22/2023

Products Featured in This Question

Valterra Bladex Waste Valve Body for RV Black Water Tank - Plastic Handle - 3" Diameter

(684)

$23.23

Valterra Bladex Waste Valve Body for RV Gray Water Tank - Plastic Handle - 1-1/2" Diameter

(684)

$13.94

Question:

I have a 2003 Corsair Excella and need to replace the black valve, which I assume is 3. While doing this, I will also replace the gray valve is it 1 1/2? Thanks for your help.

asked by: Mike G

Expert Reply:

Yes, gray waste valves are 1-1/2". If you're replacing just the gate valves for your double waste valve then you can unbolt them and slip in the # T1003VP for the black and # T1001VP for the gray and then bolt them back in place. I've attached a video below where you can see how to do this.

If you end up needing to replace the entire double waste valve then shoot me a few pictures from the other side so I can see the direction of the piping to find the correct replacement.

expert reply by: Kevin C