Washing Pills

The washing amphetamine thread got me thinking about washing pills in general. I've done an extensive search in a number of the forums but only found vague reference to washing the binders out of a pill.
So I guess my question is can this be done (ie remove the binders of a pill to be left with active subtance and in the case MDxx) and if so how is it done.

Seems like a complicated way to be able to snort your pills, me personally i'd eat the pills and but MDMA powder to snort. Also if it was a combination pill, say K & MD or MD & S then would the washin process filter out any of these inferior yet still active substances?

I guess my question comes from the availability of pills being moreso than powder from time to time.