Watermaker versus Micro-plastics

[TonyDove]

Hi all
Couldn't find anything about this when I searched … so here's a question for anyone with knowledge of the subject.

With the increasing amount of micro-plastic pollution in the oceans these days, how do Watermakers cope? Are the primary filters of sufficiently small mesh size as to exclude micro-plastics from the working osmotic membrane(s)? Is it just a case of backwashing the primary filters more often or is something more required?

Regards and safe sailing to all

[Nicholson58]

Primary is 5 micron. No problem