Last year I bought a bolted model 1/2" Versa-Matic poly pump. I had posted at one point last year about the bolts coming loose in a short period of time,..I do remember it leaking on the very first job I used it on. So,..I tightened the bolts to proper torque specs, used lock washers and red Loctite. Running at 85 PSI it held for awhile,..now are loose again and will not seat down the top manifold to the body of the pump,..and is leaking from the flanges where the two pieces mate together. Doesn't leak like a spray,. but trickles with every "pump". stroke. Probably got a lemon but will be my last Versa-Matic pump I think,..and possibly the last bolted model. As far as the pump itself, it works well and doesn't stall,.but this leaking issue is a pain. Most likely going to try and plastic weld it as soon as my new pump gets here and I get it replaced. If I ruin it,.so be it,..don't much care,..I hate leaks. Thought of pulling it apart and using some sort of sealant between the flanges to help the seal,..I don't know though. Any suggestions on how to fix this PITA pump? Not gonna put any Versa-Matic rebuild parts in it. It's only a year old,.and if the ones in it are worn,..it will be considered a backup, and fixed the best I can. I ordered an All-Flo like I had before that lasted 5 years and worked very well until it froze and broke. Stalled now and then,.but no big deal,..and should work well with my current air drying system I have been using with the Versa-Matic. *Point of the post was to give my experiences with the Versa-Matic model pump I bought. Jeff Wible Raystown Roof Cleaning