Confused about how to ground with a 3PDT switch

[badun]

I built a Fuzz Factory using the pictured PCB and it worked fine using a battery and no switching.  However, I've gotten totally lost trying to add a 3PDT switch to it.  It's my first pedal and I'm new to electronics so I'm suffering from information overload right now!  The switch is from 3pdt.com and I'm not using a daughterboard with it.  I know that there are ground wires for the input and output jacks, the power input (I'm not using a battery in the final build, just a DC transformer), the LED, the and PCB (which has a single ground point).  Where do all those ground wires come together?  That may be too simple a question but I don't want to assume that anything I've done so far is correct!

The PCB:  https://644db4de3505c40a0444-327723bce298e3ff5813fb42baeefbaa.ssl.cf1.rackcdn.com/uploads/project/top_image/xaBILSTV/i.png

[antonis]

ALL of them should come from DC power supply NEGATIVE plug..!!
(same as battery's (-) output..)

<just a DC transformer>
You probably mean DC regulated power supply.. 

P.S.
Wellcome...

[badun]

Yes, I did mean a negative DC regulated power supply.   It's a real one and I know it works!  So putting it in simpleton terms (for my benefit), all the ground wires come together in one neatly soldered bundle?

[antonis]

Something like this:



Circle named GND on middle bottom is comming from PS negative plug..
(mother of all GNDs..)

[badun]

Thanks, Antonis!  Of the many, many diagrams I have seen this one made the light bulb go off over my head and I get it now.  Thanks again!