Ok, I got it. Here's my take on a blog post about building a water tank pressure washer, trying to match the style you described:

## Water Tank Pressure Washer: My DIY Adventure

Alright, so I got this idea in my head, right? A pressure washer that doesn't need to be hooked up to a hose all the time. Something I can just fill up and go. Seemed like a good project, and honestly, I was bored.

First thing's first, I needed a tank. Scrounged around and found an old 55-gallon plastic drum. You know, the kind that sometimes holds chemicals or whatever. Gave it a good scrub, like, a really good scrub. Didn't want any weird residue messing with my car wash later.

Next up, the pump. I ended up grabbing a 12V diaphragm pump off of Amazon. They're pretty cheap, and honestly, I wasn't trying to break the bank. It's rated for like 60 PSI, which is decent enough for what I needed it for. Plus, 12V is easy to deal with – I could hook it up to my car battery if I wanted.

Now, for the plumbing. Went down to the local hardware store and picked up a bunch of fittings, some PVC pipe, and a pressure washer hose. The key was getting the right adapters to connect the pump to the tank and the hose. This part was kinda annoying, because nothing ever seems to fit perfectly the first time.

I drilled a hole near the bottom of the tank for the outlet. Then, I connected a PVC pipe to a ball valve, then connected that to the pump's inlet. On the pump outlet, I attached another fitting for the pressure washer hose. Made sure everything was nice and tight, used some Teflon tape to prevent leaks. Leaks are the worst, trust me.

For power, I just wired the pump to a simple on/off switch, then connected that to a 12V plug that I could plug into my car's cigarette lighter. Super simple, nothing fancy.

After that, I needed to figure out how to fill the tank easily. So, I cut a hole in the top and put in a large screw-on cap, like you'd find on a water container. Nothing too complicated.

Time for the test run! I filled the tank with water, plugged in the pump, and flipped the switch. At first, it sputtered a bit, but then the pump primed, and water started spraying out of the pressure washer nozzle. Not bad! The pressure wasn't crazy high, but it was definitely enough to wash my car.

Here’s a quick rundown of the materials:

• 55-gallon plastic drum
• 12V diaphragm pump (60 PSI)
• PVC pipe and fittings
• Pressure washer hose and nozzle
• Ball valve
• On/off switch
• 12V plug
• Wire
• Screw-on cap for the tank

Challenges I faced:

• Finding the right fittings that actually fit.
• Making sure everything was watertight.
• Figuring out the best way to mount the pump to the tank (ended up using some heavy-duty zip ties, haha).

Overall, it was a fun little project. It's not pretty, but it works. Now I can wash my car anywhere, even if I don't have a hose hookup. Plus, it's kinda cool knowing I built it myself.

Would I do it again? Probably. Maybe I'd get a higher pressure pump next time, and spend a little more time making it look nicer. But hey, it does the job.

Pro-Tip: Don't forget to add some soap to the water! Makes it way easier to clean.