[sdiy] Creative/Simple Bypass circuits for effects

[Altitude]

Greets list, 

  I have a little quandary. I am wrapping up my second WPTA sampler build to
which I have added a VCF (Yusynth 4072 Clone).  The sampler simply goes
directly into the filter which then goes to a single output.  I initially
(without thinking about it) figured I would just use a DPST switch to
reroute the dry sampler signal to the out but now that it is time to do it,
that obviously does not really work or something isn't connecting in my head
on how to do it.  Does anyone have a slick solution? 

Cheers,
Raph