Sanitation projects funded by international donors often request the participation of the beneficiaries to build infrastructures such as public toilets, drainage and sanitation network.
My specific question is what shall we do to ensure a good collaboration and coordination between
- beneficiaries who are not paid because they participate in the projet as part of their mandatory contribution
- regular workers who are employed to do so

I would think that the regular workers and the free workers should probably be given different tasks but I would like to have the feed back of practionners who have experienced this situation in the field.

Thanks for your help !