@moodymike wrote:

    Another suggestion is to replace the alloy filter lower bowl with a clear plastic one…

    This is an excellent idea, has anyone seen such a thing?

    @achilles/medway wrote:

    If this is becoming a problem as it is and the answer is a bug killer, why aren’t fuel suppliers adding it?

    Actually, they do – but probably not enough. Grotamar was developed for this very purpose, the marine use is a spin-off.