"Joseph" wrote in message
om...
I have a bathroom that has two sinks. The drain on both of them is
slow. I have tried all the various drano types with little or no
improvements. I tried using a water balloon thingy that attaches to a
hose and inserted it deep into the vent pipe from the roof until it
reached the floor. I was thinking that the water pressure will blow
out the obstruction and to my surprise the water overflowed from
another vent pipe inside the attic that I did not know existed because
it is burried under the AC/furnace train. Needless to say that
backfired. Now I am at loss of how to proceed. I know I have an
obstruction (probably hair) that is far down the drain. I would like
to use a snake but I am afraid that I could not tell where the snake
will end up because of the maze of drain pipes and vent pipes behind
the wall. Any ideas?

Thanks,
Joseph

The snake, if long enough, will lead to the clog. The snake will follow all
the turns in the pipe, just like water does.
Also, once I used the vacuum cleaner to blow air into a kitchen drain pipe.
Once I got a tight seal, the air pressure blew the clog away. If you do
this, remove the drain pipes enough to blow the air into the pipe leading
away from the sink. If you blow air into the drain itself, the air will
just feed back into the other drain, and the overflows in the sinks.

If all else fails, call in a pro.
Dave