A Low Rent Mortar Sprayer
(When I first posted this I used the word "coupling" to describe a 1-1/4" bushing . I apologize and hope I didn't cause anyone any grief. You need a 1-1/4" threaded bushing . So far, despite that I've had to make a few adjustments, this sprayer has worked well for me. A little electrical tape around the threads of the bottle make for a tighter, more permanant fit.Thanks.) This is an effort to make and use a simple, inexpensive mortar sprayer. I’m using it with my Harbor Freight 2 hp 125 PSI air compressor. The sprayer is made from a 1.42 gallon Clorox bottle, a 1-1/4” PVC threaded bushing and plug, a Harbor Freight air gun, and a brass coupler. It was simple to make, easy to use, and worked well spraying a very wet mix of three parts sand to one part Portland cement. As you can see in the photos, the bottom is cut from the bottle to make a funnel. Then the PVC bushing screws onto the Clorox bottle. It's not a perfect, tight fit. You can stil...