How to connect water to a pressure washer?

Author: Dr. Jonathan Kuhn I  |  Last update: Friday, July 4, 2025

Attach the Garden Hose Once a nozzle is selected, connect the pressure washer to the water supply line with a garden hose. Be sure the hose is connected to your home's water supply. Connect the hose to the pressure washer's water inlet. Double-check that all connections are tight.

How do I connect my water supply to my pressure washer?

Open the valve on the water mains and make sure that water can flow freely from the garden hose. Close the valve on the water mains. Connect the garden hose to the water inlet on the high-pressure washer. Connect the power plug to the power source.

How to connect a water hose to a pressure washer?

Connect the high-pressure hose that comes with the pressure washer to the high-pressure inlet (usually above the inlet for the garden hose). Attach your garden hose to the other inlet with a coupler attachment. Then, twist and lock the spray gun (extension lance) into place on the high-pressure hose.

Do you need a water hookup for a washer?

Most washing machines will require one hot and one cold water connection during the installation process. The hot water inlet valve will likely be marked red and will connect to the hot water hose. Follow the same process for the cold water hose and inlet valve.

Where does the water go in a pressure washer?

In order for the pumps to work correctly, they need water, which is provided, for example, by a garden hose [2]. Before it is put under pressure, the water flows into a double-walled casing around the motor, which cools it down [3]. This reduces noise and also extends the device's run time.

How To Connect High Pressure Washer To A Garden Tap | Karcher Pressure Washer Install

What connectors do I need for a pressure washer?

Pressure Washer Adapters and Couplers
  • 1/4" Quick Release Couplers (AR1 / 11.7mm plug) ...
  • 3/8" Quick Release Couplers (AR2 / 15mm plug) ...
  • AR31, ARS220 & ARS350 Quick Release Couplers (19.9mm plug) ...
  • Kew Style Quick Release Couplers. ...
  • 1/4" Thread Adaptors. ...
  • 3/8" Thread Adaptors. ...
  • M22 Thread Adaptors. ...
  • Brass Garden Hose Couplers.

Can you connect pressure washer to a bucket of water?

Put yellow valve hose-end into the bucket of water. Make sure it is underwater at all times. Tie hose to bucket so hose doesn't slip out while using the Pressure Washer. (Another option is to drill a hole in the bucket and then feed the hose through making sure it is nice and tight).

Why won't my hose connect to my pressure washer?

First, make sure that you are attempting to connect to the correct fitting. Sometimes customers try to attach the high pressure hose to the water inlet. Next, the metal fitting on the high pressure hose with collar must be pushed into the water outlet by turning/twisting it as it is being pushed into the outlet.

Do I need a special hose for a pressure washer?

If you want to save money and avoid going back and forth to buy a new hose every time, then you should purchase a hose specifically for your pressure washer. These hoses are long-lasting and resistant to twists and tangles. In addition, they should not break or leak under high pressure.

Can I use a pressure washer without an outside tap?

When it comes to the water supply, you'll need to be near an outside tap or have a very long garden hose. Alternatively, some pressure washers can draw water from other containers, such as a water butt or bucket, with the help of a suction hose.

What do I need to connect hose to pressure washer?

One set of connectors connects your spigot and your garden hose. Another set of connectors connects your garden hose to the pressure washer, then the third set connects your high-pressure hose to your pressure washer pump. Some kits even come with a connector for attaching your spray gun to your high-pressure hose.

How do I add water to a pressure washer?

Once a nozzle is selected, connect the pressure washer to the water supply line with a garden hose.
  1. Be sure the hose is connected to your home's water supply.
  2. Connect the hose to the pressure washer's water inlet.
  3. Double-check that all connections are tight.

How do you hook up a pressure washer?

How to Use a Pressure Washer in 9 Steps
  1. Prepare the Power Source.
  2. Connect the Water Supply to the Water Inlet.
  3. Connect the Pump Outlet to the Trigger Gun.
  4. Connect the Wand to the Trigger Gun.
  5. Select the Nozzle You Want to Use.
  6. Attach the Nozzle.
  7. Turn on the Water Supply.
  8. Start the Commercial Pressure Washer.

What is the best hose to attach to a pressure washer?

Large (3/8”) hoses are designed for all professional models and some prosumer-grade gas pressure washers. These hoses can withstand serious water pressure up to 10,000 psi. Plus, they're thicker to allow greater water volume (more gallons-per-minute).

Can you connect a pressure washer to a tap?

This indoor hose connection set provides the perfect solution if you need to connect your power washer to an indoor tap.

What is a pressure connector?

A device that establishes a connection between two or more conductors or between one or more conductors and a terminal by means of mechanical pressure and without the use of solder. (

How do you connect a pressure washer to the water supply?

2) Always use a free flow tap connector at the Pressure washer water supply inlet. (A free flow connector will allow water to pass through when no attachments are fitted). 3) Connect water supply hose, turn on the tap and bleed for a minimum of 30 seconds to allow air locks out of the hoses and cylinder head.

Does a pressure washer need water to run?

Attempting to run a pressure washer without a proper water supply can have damaging consequences, including: Damage to pump and components. Operating a pressure washer system without water can cause the pump to overheat and seize up, leading to costly repairs or replacements. Reduced cleaning performance.

How to use a pressure washer for the first time?

Setting Up Your Electric Pressure Washer
  1. Step 1: Assemble Your Wand. ...
  2. Step 2: Connect Your High-Pressure Hose. ...
  3. Step 3: Connect Your Garden Hose. ...
  4. Step 4: Select & Attach Your Nozzle. ...
  5. Step 4: Turn On Your Hose. ...
  6. Step 5: Connect Your Power. ...
  7. Step 6: Turn On Your Pressure Washer.

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