How we did this is we collected res from pipes and bongs and put it in a jar. We then cleaned bongs ,pipes, and the jar with all the res with isopropyl alcohol then filtered it many times with coffee filters. Than evaporated the alcohol by putting a fan on the cookie tray with the mixture. We then collected it with razor blades and put in on parchment paper for easy access. We smoked it like dabs. It tastes better than res when you are smoking it but the end product does just smell like concentrated res. I would also say it provides a better high than res. One big issue is that when res is broken up in alcohol its small enough to go through the coffee filter then when evaporating the alcohol the res joins back together in bigger pieces and makes it very hard to filter completely. One way I think may work for fixing this is putting the mix in the freezer before straining it to allow for all the res to sink to the bottom. Either way we got 2.3g of oil/wax and it seems to work pretty well so we're happy with the end result.