Bests & Worsts Reviews from Amazon

I purchased the Wagner unit to spray my deck. I used a solid color Cabot stain. The sprayer was easy to assemble and to prepare for use. I started spraying my deck and it was going great however, the unit lost its prime and I had to wait 30 seconds or so before it regained its prime and reestablished operating pressure. When the prime is lost, the pressure drops and the spray pattern is lost. This problem continued to occur frequently. I tried the troubleshooting tips in the manual to no avial. I also did research on the web and some sites said to dilute the stain. However, this stuff is expensive ($165 per 5 gallons) and the instructions on the stain said Do Not Dilute. So, I did not dilute it. Loss of the prime is a BIG pain as the disrputed spray pattern means you have an uneven application that you have to wipe off or try to blend in. Also, it is very frustrating to have to keep waiting for the unit to re-establish its prime. My deck is fairly large and ended up taking roughly 15 gallons of stain. I fought the Wagner unit throuh roughly 2/3 of the first 5 gallon bucket but then gave up. As I was researching what to do to resolve this issue on the web, I noticed that several sites indicated the Grayco units worked better than the Wagner units. I considered the Grayco unit when I was shopping but went for the lower price of the Wagner. In frustration and due to needing to get this job finished, I went to Lowes and purchased a Grayco "Magnum Project Painter Plus" for about the same price as the Wagner unit. The Grayco unit worked Great!! No issues. I sent the Wagner unit back and got a refund from Amazon. The Grayco unit was also made in the USA. My recommendation if you are using a solid stain is to buy the Grayco unit. The Wagner unit might work fine for less viscous paints however, it is terrible for solid color deck stains.