[VAL] Overlander Toilet Question

[c-l@xxxxxxxxxxx]

We have a 1965 Overlander, with the toilet under the formed fiberglass 
seat/shelf. The slide valve leaks when the pedel is depressed. I removed the 
toilet, disassembled the toilet, and found cracks in the plastic slide unit. 
Does anyone know of replacementb parts for a Thetford that old, does anyone 
one have an old toilet with that part servicable, or know of a replacement 
toilet without cutting out the fiberglass?  Any help would be appreciated.

Thanks in advance,
Chuck & Lynn
1965 Overlander
1949 Airstream Southwind