One of the latest additions to the OG store is the Griot's Garage THE BOSS Foam Cannon. This foam cannon will be a great addition to anyone's wash process and can last a lifetime. In addition to the information found in the product description, here is some added insight we found while testing the unit.
The BOSS foam cannon can be used with and without metering tips. Griot's Garage recommends ratios of 10:1 to 20:1, depending on which of their products you use. We tested Matt's dilution ratio of 5:1 with GSF. It came out a bit wetter than we were expecting, but it would still be an excellent foam for regular washes. That being said, the foam cannon performs better using the metering tips.
We tested each metering tip with GSF. The foam cannon was hooked up to an Active 2.0 pressure washer, which puts out close to 2 GPM. As this is an electric pressure washer, Griot's Garage recommends using the purple metering tip. Gas pressure washers are recommended to use the pink tip, but our Kranzle KWS700TS would use this tip as well due to how much water it can flow. The aqua tip is recommended for both pressure washers to get the most foam possible. We tested all of the tips with the Active 2.0 and found that the purple metering tip makes the best foam-to-product usage ratio. You get excellent lubrication while still using a reasonable amount of soap. When we stepped up to the pink metering tip, we found that the foam quality increased, but not enough that we would recommend it for regular use with an electric pressure washer. The aqua tip provided noticeably thicker foam. Like, shaving cream thick. If you have a particularly dirty vehicle or enjoy a drier foam, this metering tip would be worth using.
A notable difference from the PF22.2 is the pickup tube is much more flexible in The BOSS foam cannon. The weight on the bottom of the tube makes it so you can practically use the foam cannon in all directions, metering tips or not, no matter how you spray it.
Having used both the MTM PF22.2 and the Griot's Garage THE BOSS foam cannon, the Griot's version is more enjoyable to use. While you may not be able to have a horizontal spray pattern with the Griot's foam cannon, I never found myself needing it while washing my car. The spray pattern adjuster on the Griot's foam cannon is stiffer than the PF22.2's, but that is a good thing. You won't accidentally twist the spray pattern when handling the foam cannon. The regulator knob on top is also infinitely adjustable rather than indexed like the PF22.2 is. This will help you dial in your foam quality for your specific use case. The foam cannon bottle mount features two different thread patterns. One is for the wide-mouth foam cannon bottle. This is where you can premix a solution or pour concentrated product directly into the foam cannon bottle. The other thread pattern is designed to fit Griot's Garage 35 oz products, like their engine cleaner. Utilizing the metering tips, there is no need to dilute the product in either bottle.
In conclusion, The BOSS foam cannon from Griot's Garage is a great upgrade to your wash process. The stainless manifold, rebuild kits, metering tips, and much more contribute to a great foam cannon experience with ease of maintenance.