"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 balloon may just work if you block the vent you found. Put some Ammonia
down the drain then some HOT water several gallons. Then try the hose
again.

I had a friend that had a kitchen sink drain that barely moved. When we
replaced the kitchen cabinets it was time to open up the wall to the T. He
protested and she screamed. I persisted. I found the vent and got the
balloon down the pipe as far as we could. Then I plugged the T and away we
went. Took three shots and over a gallon of ammonia. It has been a year and
there has not been a problem since. He puts a quart of ammonia down the
drain in the kitchen each month followed by a full sink of hot water.
Do you have a garbage disposal? Stop using it for a while. Garbage
disposals are plumbers best friends.