Chapin 61900 Made in The USA 4 Gallon Tree and Turf Pro Commercial Backpack Sprayer with Stainless Steel Wand, 3 nozzles, 3 Stage Filtration, Translucent White

I’ve been using this sprayer for several years now, and it still works great. It is very well made, designed with a lot of thought, and functions reliably for years.

This sprayer is excellent! I am so impressed with its construction and features. I used it today to do my home's gravel parking area, about 150ftx50, that took about 2 gallons, then i did our 1400ft gravel driveway (the center of it). That took just about 4 gallons.Whats really nice is filling it up with cold water and glysophte concentrate and having a portable AC unit on your back while you spray.The nozzle it comes with, the red plastic one (you need the nut from the brass nozzel to make it work) is perfect. It has a pressure reducing valve in it, so if you pump it up to 90psi, or it gets down to 20psi, it sprays evenly. Once it gets to 20psi the sprayer stops spraying to prevent dribbling or even coverage. When i sprayed the center of our driveway the sprayer had about a 2ft spray width and i was able to do so at a walking pace. I could go about 40-50ft before needing to pump it up again. I ended up just pumping while walking and did the enture driveway in the time it took me to walk down it. The straps are solid and comfortabl to carry and the spray nozzle has an anti-fatigue handle that can lock in place.What's also nice is the fact the lid is not under any pressure. There's a separate bladder tank inside of the unit that holds sprayer pressure so you can safely removed lid to top off. This sprayer does not feel cheaply made at all. Though i cant comment on its reliability i can say it's very well made and was great to use.

We finally gave up on our hand held 2Gal sprayers and went with this one. Appears to be nicely constructed, and the manual details rebuilding steps as well as a parts list - so even if it breaks you'll be able to service it.I know it's petty, but I reduced this by one star because of the straps. Not because they are uncomfortable - they were attached COMPLETELY wrong. I spent half an hour trying to figure out what *I* was doing wrong since I figured there was no way something from the factory would be set up incorrectly. This one was.Be prepared to remove the straps from the various clips/etc and re-rig this when you get it.Set the sprayer on a table right side up with the shoulder strap connectors on the top of the tank closest to you (you should NOT be able to read 'Chapin') on the tank.The shoulder pads have a 'plain' side and a side with the strap sewn to the face. The PLAIN side should be facing the tank, the strap side faces towards you. Each shoulder strap has a couple of curves. From the top down, the first set of curves should be to the OUTSIDE edge of the sprayer. They should look like THIS: ( ). The second set of curves face INWARD. They should look like THIS: ) ( You know it is correct when the chest strap can go between the 2 shoulder straps and not twist anything.Next, look at the LUMBAR support. It has a flat edge and a curved edge. The curve faces UP. It too has a plain side and a side with straps sewn to it. in this case the PLAIN side is the side that will face you. Each side has a plastic clip. That clip attaches to the metal stand, just under the main pump rod. Clip them on so that they twist the least. If you disconnected the shoulder straps from the lumbar support, re-attach them without twists.NOW you can put it on. Put an arm from the middle of the tank through the shoulder strap. Grab the other side and put your arm through. It's just like a coat. Adjust the shoulder straps to carry the tank where it is comfortable on your back, then attach the chest strap from one side to the other. Adjust it so the shoulder straps don't wander around. Now grab the belt strap and wrap around your waist and attach it to the other side. Adjust as needed for a comfortable fit.

For years I have wished I had a backpack sprayer for my 5 fruit trees and other house and yard work, but I could not justify the additional expense when I already had a Solo 2 gallon sprayer that worked fine. When I took on spraying my neighbor's trees to help her, I immediately ordered my Chaplin 61900 sprayer (after careful research). It has made my spraying so much easier and faster that I kick myself for not having done it sooner!No longer do I have to spray, pump, spray, pump, spray, pump, etc. I now pump as I walk along spraying, and the built in pressure gauge tells me how much pressure is in the tank. Thus my coverage is more consistent and the task takes less time.At 74 years of age I was a little concerned about the 34 pounds on my back, but new that I could just half fill it if it was a problem. I have a table I set it on and then slip into the harness, and I find the weight a non issue with the good strapping to properly support it.Today, while spraying for spiders, that as I finished up the seventh gallon, it was getting hard to pump.Having used it already for at least 8 hours already this summer I noticed immediately the added resistance. There are three screens in the system, and a quick check found the first two clean as a whistle. I had to take the hose off the handle to get to the third, but as soon as I did the cause of the problem was obvious.Some of the viscous spider chemical had not dissolved and had collected at this last screen. After cleaning the screen, the pump was again working well. Next time I use this chemical I will dissolve it thoroughly first.Don't wait until you have to have it. Buy it first. A quality, efficient piece of equipment.