1 reverb 2 chain effects 2 instruments - Problem

[Shamadan]

Hi. I was trying to connect harp and guitar to one reverb and it worked but when I turn on harp delay my guitar volume went down a lot (like from 10 to 3). Any ideas how can I fix this problem?
Btw. My amp doesn't have an effect loop.

[Neil mcNasty]

I guess you can use the ideas being put forth in this post: http://guitar-fx-layouts.42897.x6.nabble.com/Stereo-to-Mono-Sum-box-td19944.html
Seems like it's pretty much the same need...

[Shamadan]

Thanks I will try it today.