Yo Bro Qo - Invest in a ultrasonic cleaning system, It will save you time. They are available at many places but as always with this type of investment, you get what you pay for....so blow the dust off the wallet bro.
I have this thing about even using used GP tubes from members that I have purchased much less any atomizers(very rarely buy used).
Hmm, I had a Harbour-Frieght that I hardly ever used. And it went phut eventually. But, that was before e-cig happened to me.