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DIY, 12v sprayer/pressure washer

16K views 7 replies 6 participants last post by  azlo 
#1 ·
Thought I'd share. Last time we went on a camping trip we overheated in the middle of the woods at 1am lol. The radiator was covered in mudd. We ended up dumping cooler water on the radiator and removing the hood for the rest of the ride. Well the group we were with had several people that one time or another had the same thing happen to them due to mud. Some had ideas of a bringing along a water gun others said they had seen 12V pressure washers.
Well I had forgotten about, But we are planning a camping trip for a few days so it came back into mind. I was spraying round up with my spot sprayer on the back of the RZR and realized it had a pretty good spray jet. Since I had an extra pump on the shelf I thought I might would make a small sprayer setup to remove mud from the radiator, lights and windsheild when needed. I already had the pump, Acrylic and fittings. All I had to go buy was the spray gun and the hose.. I didnt' really want to rob the one off my sprayer. Plus this way the water is clean so we can even use it to wash off with. Total cost for me was about 20 bucks. If you had to buy the pump it would be more like 90-100.
I found one on ebay for around 5-60 bucks but it was to big to fit beside my lock and ride box much less allow for a gas tank beside it. I also figured with it being so cheap the pump must be trash.


 
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#4 ·
I don't really plan on using it to cool the motor. Just to clean the mud off! As long as the radiator is half way clean I dont over heat. Figured it would also come in handy for cleaning the headlights/taillights and my windshield. That stuffs all plastic so if you try to just wipe the mud off they scratch.
 
#5 ·
Just to see a bit more about it...

What all do you got going on there? looks to be a wooden box that contains a jug of some sort(for water) and the pump?

Care to show a bit more of it?:popcorn:
 
#6 ·
Here’s what I did (sorry, no pics). Start with a 5 gallon pail. In the bottom put a common garden tractor battery. On top of that set a ShurFlo Marine Blaster pump with a waterproof switch between the battery and the pump. Near the pail’s bottom drill a hole in the side to accommodate an intake or pick-up line to the pump. Use whatever you want as hose and spray gun (wand) on the pump’s output. The pump has its own pressure switch so it only runs when you pull the trigger on the wand. Now you have a self-contained, self powered pressure washer that you only need to set in 3-10” of lake or stream water and start spraying.

That’s the short version, here are a few details. Put some window screen over the pick-up so you’re not sucking debris into the pump. Once you have the pick-up plumbing done pack some thick foam around the battery or use Great Stuff so it doesn’t move around. Put a two-prong connector on the battery so you can leave it on a trickle charger when not in use. I cut a piece of ½” treated plywood to sit in the pail above the pump. That holds the pump in place and gives me a place to coil up the output hose, store the spray wand and a brush. My output hose is just ½” tubing with ¼” air line quick-connect on the end so I can use a variety of wands (short for general cleaning and long with a hooked end for getting into tight places).

This can be carried on the trail but we don’t use it that way. So far cleaning our radiators in camp either after the ride or the next morning lets us play in mud all day without overheating.
 
#7 ·
Sure I'll explain it a little better. I should have took pictures of me building it, but really it was something I just through together in the shop the other night.
The box is 1/8" Black Acrylic with 1/4" strips along each seam. Basicly its a plastic box thats pretty light and has some flex but the seams are 3/8" thick and welded with solvent. The tank is 9.25"wide 9.25"long 10" tall. Holds around 3.5 gallons full. I made it this size cause to fit beside my lock and ride box and still allow for a gas can. We carry a cooler on the other side when we are out on trails. So this allows me to carry my cooler, gas, lock and ride box and the washer. The little box on top of the big box is where the pump is mounted. Pull two screws and you can access the pump. All this does is keep the mud off the pump. The pump is a Sure Flow 12v 60Psi on demand pump. Meaning when ever you squirt water the pump kicks on. The pump has a cable that runs to the RZRs battery with a plug. So you can just unplug the sprayer and remove it when you dont want to carry it. I use a spot sprayer on my RZR when I spray my fence line so I already had it wired for my sprayer.
You can buy 12V pressure washers. But they wont fit beside a lock and ride box and you for sure can't fit a gas can beside them. If you want something to leave at camp just one of those or even just a spot sprayer from tractor supply. I made this just so I could pack it on the RZR while we are out on the trails.
 
#8 ·
You can use a small heavy duty plastic gallon jug or bigger. Make sure the lid seals well and drill 2 holes in the top. One hole gets a copper tubbing down it,almost to the bottom. that can be connected with fittings out of the lid. The other gets an tire air valve. Using a 12 volt air pump put a little presuure in it and wall ah you have a sprayer. We used to do this with the big 50 gallon white barrels for running water when we went hunting works great. Does not take much presure to make it flow. Plus you have air with you if you get a low tire. Hope this helps.
AZLO
 
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