5 Gallon Gas Backpack Sprayer 450 PSI Pump with Nozzle Bundle

Good, but not Great.

Overall, this powered backpack sprayer is great, with the exception of one downfall. If you buy one of these, make sure you tighten the hose that connects the hand sprayer to the pump VERY well. If you only tighten it hand tight with the finger tabs, it WILL vibrate loose and begin dumping everything in your tank down your leg. It is a critical engineering oversight and needs to be re-engineered. The little finger tabs aren't nearly big enough to get it tight enough, and no matter how hard you tighten it by hand, it will still vibrate loose. Use a pair of channel locks instead. Tomahawk needs to go back to the drawing board on that and add a lock or something, because dumping a bunch of pesticides down my leg is no bueno.

So far performing as advertised. I’ve exclusively used the system for permethrin application for mountain pine beetle prevention. I am able to reach about 30 feet vertically, as long as the wind is calm, using the hand sprayer gun attachment. There are two issues that routinely pop up. First, the connection between the hose and the tank requires constant checking for tightness. Based on the rpm set and added engine vibrations, it will back off. Second issue is with the throttle locations proximity to the shoulder harness connection. You really have to watch how you mount the harness to prevent the strap from catching on the throttle and goosing the engine.

Im happy with it so far. The part that take longest is taking it off and refilling. I just hope it lasts 10 years. I have not used every attachment but the handgun works. The extender is good and works. Compared to old manual hand pump sprayer I had this makes me choose to wear a spray suit and real good painter mask