The pill silencer works great, way better than I expected, I hardly hear the skimmer at all now period.
Tools needed: drill and drill bits I used 15/64, pill bottle(I used a small advil bottle)
step1:
drill 2 holes in the cap
step2:
put the tubes in to two holes, then glue them on,put the cap back on
step3:
put the bottle in to electricity chamber,connect the longer tube to the air valve,done
the noise has been reduced to all most nothing, easy and useful mod.
Now my 9002 works better than ever