Gravesend DL1 Delay, anyone own one? Help
 

I bought a few pedals off cragislist on the weekend. He didn"t have the manual for it. I was hoping someone here might have a manual or tell me where to find a manual. All I can figure is is a Tone Weal pedal rebadged for sale at Sam Ash stores. Any help greatly appreciated. Cool little pedal but not sure how to use all its features.