QUOTE(scoutfai @ Apr 19 2014, 08:38 PM)
What about in the scenario where you have a new pad, you use it 1st time after a detailing session, then will you:
1) Wash it immediately, dry it and then store it. So that the residue product, and whatever you removed from the panel do not get dried and harden on the pad, causing dust and flake of particles in next use, which you do not know when, and you are not sure whether it will be the same product also.
OR
2) Just straight away put it inside a plastic bag and store it as it is without cleaning. If the next detailing session is using the same product, you just simply brush clean it or air blow clean it, do not wash it, and then re-use the pad again (so you can prime the pad using lesser product). Only wash it and dry it a day before the next detailing session (do not know when) if anticipate to use different product.
Which approach is the appropriate one?
And another question, let's say you are sure that the pad is going to be used for a same product only, but the next detailing session is a car with different paint color than the current detailing session, and this two detailing sessions is just like at most 1 day away from each other, will you wash the pad or you just brush clean the pad?
I choose number one

Certain polishes are easy to clean from the pads (Megs, Osren), while some requires more effort (Opt). Either way, I tend to wash them after a detailing session and try not to allow them to dry too much which can make clean them off the pads more difficult.
A clean pad is always a joy to work with

As for your next question, I would recommend washing the pad anyway.
I am assuming that the pads will be worked on a single stage paint, then I would not want to contaminate the current paint with the previous one.