joker valve

Hello, I have read that the Raritan ‘Duck Bill’ joker valve is superior to the tri cut Jabsco joker valve. As it’s the same size, will it work in a Jabsco Quiet Flush? Are there unintended consequence? Resistance perhaps too high? Unless I got a bad batch, my last tri cut valve only lasted a...

Hi, Thetford no longer makes (or handles) Tecma heads or parts thereto. So I can’t find the part (#41277), which needs to be replaced pretty much annually. Does anyone know of a suitable replacement (i.e. not one that simply fits in the waste tube); the Tecma part is fairly flexible...