I replaced my inexpensive back pack sprayer with a "Professional Grade", or so I thought. The sprayer/pump work fine, no issues there. My complaint is the back pack straps, worst design. I load it up to 4 gallons. The elastic straps on the back are already showing wear after using it 4 times. The chest strap chokes your neck. The lower back support sits up way to high and isn't adjustable with out adjusting the shoulder straps.
I HATE THIS SPRAYER! I had a solo backpack that finally blew up after about 12 or so years. I read the reviews on this one and decided to "step up" so to speak. I thought the CF valve was awesome and it would conserve product and get the same end results. Not the case. It seems to spray way more. I could deal with that. What I can't deal with is the constant pumping you have to do to spray. No one talked about that. It sucks! Why would you want to pump the whole time you're spraying. Most sprayers will require a few pumps and spray for a long time. Not this one. If you stop pumping it stops spraying. I just wasted $94.00 because I am going buy another Solo sprayer. THE WORST SPRAYER I HAVE OWNED!!!!!