Because it’s hooked to an X-Jet M5 which is an incredible tool for (soft wash) power washing houses.
If you prefer downstreaming that’s fine too but no need to make the X-Jet out to be something of no value.
I agree that the X-Jet is good to start out with and check out downstreaming later on if one so desires. After using both make your own choice as to which one you prefer.
Neither one is wrong nor right. Simply a preference.
The great thing about the x-jet is it works every time, there’s no maintenance or trouble shooting. If you take it out of the tool box for over a year, it will work. With my downstream injector, if I didn’t use it for a month, there was something wrong with it. The time savings for somebody who pressure washes something once a month just isn’t there.
If you’re doing a fair amount of pressure washing, then yes, learn how to downstream, learn how to trouble shoot, and have at least two new downstream injectors with quick connects ready to go to switch out in a hurry if one fails. You can fix it later. This is where you’ll save money and time. Use a dual wand lance so you can go from chemical to rinse with just a turn of the handle on the wand. It’s great - but not for the guy who pressure washes once a month.
As for the 12% on the grass, I wouldn’t ever be using 12% on the house, and wouldn’t suggest anybody to do so. In any case, I suggest a closed jug. Drill a hole in the lid and silicone the chemical hose in place. Then drill a very small hole at the top somewhere to allow ventilation. It’s much safer this way.
You can also buy an X-Jet Pail which is an enclosed 5 gallon container made especially for the X-Jet. It has a soap hose attached with an on/off switch. The hose is already plumbed to the container so you’re ready to go.
This is what I use and it’s well worth the 40 bucks I paid for it. If it turns over it doesn’t spill. The X-Jet Pail is not round like a bucket but more cube like in shape.
But you can always rig something up at home similar to the X-Jet Pail if you like.
