jetson's been playing around again and recently put down the reflux condenser and gave the ole push pull, "fast rxn", a try. well yeilds were below what he usually gets when refluxing but that's not the point of this post. the point is that he has found that all one needs in order to make themselves a very low tech fully functional push/pull device is a rxn vessel of course, some braided tubing that fits up with the rxn vessel, a glass/jar/bottle/whatevah of h2o and an inline oneway check valve. getting the picture? the inlinve check valve goes in the hose in between the rxn vessel and the h2o, or in other words, in-line. that's all no suck back traps to get in the way, no big plastic bottles that make your lab look like shite(no offense, jetson's just a neat freak that's all) and it's really really simple to set up and understand. one thing you need to make sure the check valve is of the low pressure type. that's all...