This is my current Vacuum pump setup the pump is also from Harbor Freight. If you watch for sales and get an Insiders Club Card the price is not too bad.
Thinking about changing the pump system some to not work the pump as much - but more the method as I pulled too much epoxy last time when I had a perfect seal with my bag and smaller parts.
I started working on it before I left to go work on new cruise ship build a couple of months ago. I’ve been back to the US for week and I’m still weeding through the “honey do” list. I’m also interviewing for a new job my current job keeps me too busy and can’t seem to find time for my boat and that is starting to bother me. Also is picture of the “Bong” I built to capture epoxy and have some extra vacuum volume. I have the conversion of the vacuum pump and building the bong on my website http://www.themanshed.com/tms-20-trimaran/8-18-09-layup-and-vacuum-bagging.html I hope that helps.