A method of controlling the presence of rodents in the vicinity of, at and within vacuum waste collection system (1) installations (10) involves forming an entrance for rodents into the vacuum waste collection system, forming said rodent entrance as a branch pipe (20), leaving a first free end (20A) of the branch pipe at least partly open, communicating a second end (20B) of the branch pipe with a vacuum waste collection system transport pipe (11) through a controllable branch pipe discharge valve (23) and providing at least one rodent trap (21, 22) in the branch pipe, between the two ends. An arrangement for controlling the presence of rodents at vacuum waste collection system installations is also provided.
