My mom's house in SE Pennsylvania has a vent system that I am not
familiar with and I am hoping for some advice to see if there are some
alternatives to try before excavating the pipe in question.
Every house along my Mom's steet has a vent cap between the curb and
the sidewalk. The toilets at her place have to be flushed several
times and/or plunged in order to get solids through. A sewer cleaning
service visited the house and based on what they observed, they started
snaking via what they referred to as the "street vent." They could get
no further than about 6'. Apparently there is something wedged in the
trap that they can't get out. They did get out two bricks and a bunch
of stones so they think there is more of the same blocking the trap.
The city came out and replaced the vent cap and part of the line, but
said the problem extends onto the property. [fyi, a neighbor's kid
dumped the stones through the vent cap holes, but I don't understand
What is the purpose of a vent line with a trap that runs to the street?
Is it possible that the vent pipe that goes to the roof is sufficient
and the real problem is a blocked drainage line? When the sewer
cleaners talked about a "vent line" is it possible that this is also
the same as the drainage line?
Is it worthwhile to pay (~$350) for the sewer cleaning company to
return and clean the drain lines and/or roof vent before paying a
plumber to dig up the buried vent line and trap (~$1500?). Thanks for