Grey Dump Valve help

My 2009 Wildcat 27RL developed a problem with the front dump valve for grey water. I have cut access hole removed valve and found the problem a chip of what looks to be plastic slag from the Black tank wedged in the valve and binding up the seals. I removed the piece of plastic and when I re-assemble the valve and pipe I cannot get the seals to stay seated when I assemble the valve. Any suggestions as to repairing this? I have tried assembly at least 5 times and still a seep or leak a binding if the seal pops out and shifts to far during assembly. Hope someone has a hint or tip to keep the seals in position during reassembly.

Thanks
DDOWN

DDown, wish I could help you out on this one, I have never taken the gate valve apart like it sounds like you have done. I guess short of buying a new valve and replacing it is all I could suggest.
Hopefully someone will chime in, and have first hand expierence on what your'e up against....

The seals are in and not leaking They must put the whole thing together from the tank side and cement the PVC fittings as they go out. Talk about a tight fit it took at least 7 attempts, secret was to get seal and valve body attached to 1 1/2 in pipe and then hold that together while positioning tank side fitting into valve assembly. Working great no binding, leaking or seeping. Time to seal up the belly of the Beast and head to Texas on the 11th of May. Thanks to all for the help.

Went and got 5 BF Goodrich Commercial TAs on my 16 inch Rims New Shoes!! WOW the beast is happy Today. No more incontinence (leaking) and new shoes !!!!! And no Blowouts

ddown wrote:Went and got 5 BF Goodrich Commercial TAs on my 16 inch Rims New Shoes!! WOW the beast is happy Today. No more incontinence (leaking) and new shoes !!!!! And no Blowouts

Yur Cat probably thinks it died and went to RV heaven!! Glad you got the plumbing figured out. You probably know more about it now than FR does.

TC

Glad it all worked out for you, happy camping....