Monomachine and Boss RE 20 as Send/return

I would like to add an Boss re-20 Effekt pedal as an delay effect unit as a send return device to my monomachine setup. I’m not quite sure about the levels.

Do I need to re-amp the signal after the effect pedal or does it have enough gain (or can the monomachine add enough) so that the effect level is loud enough compared to the dry signal coming out of the monomachine?

Any advice if this setup works would be good

works perfectly, no issues at all.