We get a lot of questions about 12v systems for smaller/low pressure applications so I thought I would share this. I finally tried uploading pics from my phone instead of the computer and it worked, so now I’ll write the text on the computer.
The guts of this is nothing more than a Northern Tool 2.2 GPM spray rig. The yellow hand truck is a large one from Harbor Freight. The tires roll across most ground with no issue. The bottom of it collapses flat. This thing will break down in about 5 min and fit in the truck of a four door car. You can buy this sprayer with or without the spray bar attachment you would use on an ATV or UTV, you obviously don’t need the spray bar but if you look right next tot he pump you will see the connector with two ports, one goes into the tank and the other goes to a pick up line I can put into anything. It can be purchased separately That’s a high dollar valve, I got it two for about $6.00 in the irrigation section of HD. I allows me to pump from the tank or a bucket. That’s 3/8’s hose. The battery is a small AGM battery I bought at batteries plus, I’ve never run it flat. If you look at the picture with my boots showing you will see a couple of metal pieces sticking out from the bottom of the hand truck. Those go under the sprayer and the battery sits on them. I use a Solo spray wand, about 19.00 at NT.
This thing is very versatile, I have used it for staining (obviously), spraying SH before I got a larger system, applying concrete sealer and One Restore. It’s handy when your job is 300’ from the closet place you can park etc. The pumps are readily available (I burned one up) and the entire system costs less than $500.00. Use coupons for everything. You can assemble this without the tank and mount it on piece of wood for that matter but I like that I can mix 15 gal of oil based stain and knock out most jobs when I need to.
What size battery?
I really beed to build something like this.
Group 35 - 35 amp hr
Thought I’d revive this thread since I just built a little 12v stain cart. I used an old pressure washer frame, and purchased a 50’ flexzilla air line. I used quick connects and mounted a northern tool 1 gal a minute pump. The gun is a cheap pressure washing gun. Used it for the first time today and worked great. I was able to spray around 3000sqft in about 3.75 hours including prep/set up and packing up.
Nice little setup. Be sure to flush that baby. I use pine sol and water.
x2 on the PineSol… looks similar to what I want to mod our system into, except I want to make the bucket bracket anti-tip
I normally use paint thinner. I’ll have to try that out. A lot cheaper lol.
Educate me on this anti tip you speak of. I’m not sure what you mean.
Nevermind I’m guessing you mean where the bucket sits. I honestly only moved it about 3 times and it wasn’t as cumbersome as I thought it’d be.
This is one I’ve seen. I think they run like $700, but we have the 12v, spray stuff, and pretty much everything going on except the cart itself.
Most of the time it has to go around back, which is usually downhill/steps, so keeping the bucket from tipping would be ideal.
$700 bones! I saved a good bit of money 
. That bucket set up is legit though.
yeah, we’ve got maybe $100 in the pump, battery and wand/hose… I can figure out the cart setup for better than $600 
I meant to ask you what ratio do you mix the pinesol and water to clean out your pump? Also it cleans the oil based stains out of the system?
I just put 2-3 gal of water in a bucket and dump a slug of pine sol in there.
ditto, cycle it through.
Now that we’ve had to do a couple stripping jobs, we have that product around, so we dump a bit of that in there instead.
When using my airless, with penetrating oil, like Wood Defender, I don’t clean it out. It never dries or gums up the pump. If I am using water based, I clean with several gallons of water and then run pump oil into it. I only use the 12v with Wood Defender fence stain so i never clean it out, just do color changes as needed.
