wrote:
On Jan 31, 2:15?pm, "peter" wrote:
"Speedy Jim" wrote in message

...



? Crawl space means no floor drains, as there would be in
a basement. ?Right? ?So, all the fixtures are well above
grade level.

? In that case, I would say there is zero likelihood of
backup out of toilets/sinks due to stoppage/flooding of
the city sewer.

Isn't it possible for a neighbor to throw something in the toilet
that eventually clogs the city sewer line? If this happens, then
subsequent flushing or use of water would cause a backup. Or is the
city sewer line so large that nothing passing through a toilet could
possible get stuck there?



? If there was a stoppage, either in the sewer or in your
lateral connection (tree roots) AND you flushed a toilet,
then it would/could backup within your house.- Hide quoted text -

- Show quoted text -

city sewer lines are typically very large, to handle water
infiltration during storms.

tree roots can attack sewers, and cause much grief


This is a commonly held belief that seems to be wrong.

See this link - it is the best explanation I have found so far.
http://www.winnipeg.ca/waterandwaste.../treeRoots.stm

Tree roots don't attack sewer lines. Sewer lines deteriorate and or fail
and then the resulting escape of water and air creastes an environment that
attracts tree roots.

Also, while it is a very good idea to prepare for an emergency, you can only
prepare to deal with things that you can have some control or influence
over. If there is a blockage of the City sewer main there is nothing the
homeowner can do except call the municipal authority and wait for them to
respond. If there is a true emergency going on, I suspect the municipality
has other things on their minds.