HotRod wrote:

I've had great success pressurising the pipes with the "blow" side of a shop
vac. Be very careful where the pressure lets loose though.

Interesting you should suggest that. I don't have a shop vac...but it
occured to me that a solution of vinegar and baking soda down the drain
might blow whatever is blocking it loose if I also plug the sink. It
produces enough effervescence to blow out a hose connection on a boat if
you're not careful. I don't THINK there's any danger of that happening
in the house, but I'm not sure what else might!

--
Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://www.seaworthy.com/store/custo...0&cat=6&page=1
http://shop.sailboatowners.com/detai...=400&group=327