Refuse workers in St Helens in Lancashire held an unofficial strike over single status on Thursday of last week.
More than 60 manual workers in the Unison union staged a protest over concerns they could lose up to £5,000 a year of their pay as part of a single status deal.
The four-hour strike ended after a meeting between union officials and managers from St Helens council.
Unison union representative Steve Fay said that workers’ bonus payments could be slashed. He said that it was difficult to predict what would happen, and that everything was “up in the air”.