Excuse my ignorance. But I would like to know what the advantages / disadvantages are of the two sprayer types (piston/diaphragm). And I was wondering if you could leave your spray mix in the sprayer instead of washing it out every time. I have a solo domestic back pack sprayer at the moment and was thinking of getting a second unit so I could use one for Glyphosate and one for general lawn care spraying such as bindi/clover spraying etc.
Thanks
Dave.