What I was getting at is it should be effective in a spray bottle in a much higher dilution if it works in a cannon well at 1:9.
Say you have a cheapo electric pressure washer that puts out 1.5 gpm. For every minute you are spraying this product in your cannon, you are using the 1:9 mixture + 1.5 gallons of water - which is a huge amount of water, compared to the original dilution.
If your cannon is set so you go through half a mixed 32oz cannon bottle per minute, the dilution that hits the panel is much higher than 1:9. If you use approximately 4oz of the product to fill up a 32oz cannon bottle, the final dilution is 2 : 144; or 1 : 72 that will hit the panel.
So, I'm guessing it works in a spray bottle at much higher dilutions? Can someone confirm?
If it's effective in a spray bottle at 1:70; compare to 1:9 - that's a DRASTIC difference in price per use.