ATM I am being plagued by mosquitoes, so I bought bulk flying bug spray concentrate and I needed a way to deliver the payload.
So I thought Venturi Sprayer, had a look on here and there was one pretty close to what I needed, just modified it to suit my Makita Cordless Blower.
I used the mk2 nozzle and drilled a hole that suited the qty I wanted to dispense
I used a 2lt cordial bottle, you can use whatever you want.
I found inserting the front cone nozzle in or out also adjusted the qty of spray and size of droplets/mist.