I live in a 1928 building that was converted to condos. We've had problems with people using garbage disposals (too much for the pipes) so we're trying to develop a list of things NOT to do to help preserve our delicate plumbing.

- One neighbor says: No Draino (but I don't know why)
- One neighbor claims pouring bleach down the pipes helps clear them (is this OK?)
- We all feel we should not allow garbage disposals.

Does anyone have any explanations or additional information we should consider?