If you buy any Solo sprayer, you should also stock up on pump rebuild kits and be ready to spend an hour or so installing one every year from now through eternity. We bought one a few years ago, it lasted one season, then a different model (piston) and that lasted one season. The rebuild kits run $15-22 each. Seriously, either have one on hand or be ready to have your pump not work when you need it. They are fairly easy to take apart if you are handy with a hex driver & screwdriver... but they really need to use better quality rubber or silicone so they will last longer. But then they won't make so much profit on the rebuild kits!