I've owned many backpack sprayers. This one has a design flaw in which you have to take the sprayer off your shoulders in order to pump it since the handle swings 20 degrees from a vertical position. Or if mounted the other way straight down to behind you. Again not practical.
There is literally no way to use this device.
Basically the holes where the handle bots to the sprayer are drilled 90 degrees off. As you can imagine this makes mounting the handle near impossible and eats into the plastic guard.
I'll try their other model to see if it works better depending on how DoMyOwn handles the return.
I highly recommend you do not buy this and waste your time as I have.
We bought these because of the handle on the lid but the lids are extremely weak threaded and leak significantly. Even a slight tip will cause liquid to flow out the top.
Incredibly disappointed after using this brand for years.