Can You Use Hot Water In Pressure Washer

So, there I was, armed with my trusty pressure washer, ready to tackle the grime that had accumulated on my deck over the summer. I'd filled up the soap reservoir, adjusted the nozzle, and was just about to let 'er rip when I paused. "Wait a minute," I thought, "I've got some super hot water in the kettle. Couldn't hurt to use that, right?"

And that, my friends, is how I found myself googling "Can you use hot water in a pressure washer?" while my tea went cold. I mean, it makes sense, right? Hot water cleans better, so why not use it in my pressure washer?

Hot Water: The Goldilocks Dilemma

You know the story of Goldilocks, right? The porridge was too hot, too cold, but the third bowl was just right. Well, it turns out, hot water and pressure washers have a similar Goldilocks dilemma.

On one hand, cold water is too cold. It doesn't dissolve dirt and grease as effectively as hot water. On the other hand, boiling water is too hot. It can warp plastic parts in your pressure washer and cause serious burns if it comes into contact with your skin. So, what's the 'just right' temperature?

Temperature Talk

Pressure washers are typically designed to operate with water temperatures between 100°F to 170°F (38°C to 77°C). This is the 'just right' range where you get the cleaning power of hot water without the risks of boiling water.

Most residential pressure washers can handle water up to 140°F (60°C), but it's always a good idea to check your specific model's manual. Some commercial-grade pressure washers can handle even hotter temperatures, but they're also more expensive and powerful than what you'd typically use in your backyard.

Why Hot Water Works

Now, you might be wondering, why does hot water clean better? It's all about physics, my friend.

Hot water has more energy than cold water. This extra energy helps to break down dirt, grease, and grime more effectively. It also helps to dissolve soap and detergent, making them more effective at lifting dirt off surfaces.

Steam Cleaning

Some pressure washers come with a steam cleaning option. These use water that's hotter than the typical 100°F to 170°F range, often reaching temperatures of 250°F (121°C) or more. This superheated water turns into steam, which can kill bacteria and viruses, making it great for cleaning surfaces like outdoor furniture or your car's interior.

But remember, these steam cleaning features are built into the pressure washer and are designed to handle the high temperatures. Don't try to create your own steam cleaning setup by connecting your pressure washer to a hot water source, as this can be dangerous.

Safety First

Speaking of safety, let's talk about the elephant in the room. Hot water can cause serious burns. If you're using hot water in your pressure washer, always wear protective clothing, including gloves and long sleeves. Also, be careful not to point the nozzle at people or pets, as the high-pressure water can cause injury even if it's not hot.

And one more thing, never leave your pressure washer unattended while it's running. Hot water can build up pressure in the hose, and if something goes wrong, you want to be there to turn it off immediately.

When in Doubt, Ask

If you're still not sure whether your pressure washer can handle hot water, the best thing to do is to check your manual or contact the manufacturer. They know their machines best and can give you specific advice tailored to your model.

And if you're thinking about buying a new pressure washer, consider one that's designed to handle hot water. Some even have built-in heaters, so you don't have to worry about connecting it to a hot water source.

So, what did I do with my hot water and pressure washer? I let the tea cool down, filled up the pressure washer with water from the tap, and got to work. And you know what? My deck has never looked better.

Until next time, happy cleaning!