What safety precautions should be taken when using a pressure washer hose?

Check the appearance of the hose
Before using the pressure washer hose, you must first inspect the hose for appearance. Mainly check whether there are obvious defects such as cracks, bulges, aging, loose joints, etc. These problems may cause the hose to rupture or leak under high pressure, resulting in injury to the operator or damage to the equipment. When checking, pay special attention to the bends of the hose and the joint connection area, because these parts are more likely to wear due to frequent bending or stress.

Ensure that the hose matches the pressure level of the equipment
Pressure washer hoses have different design pressure levels. When in use, the rated pressure of the hose should be higher than or equal to the working pressure of the cleaning machine to ensure that the hose can withstand high-pressure water flow without rupture or leakage. If a hose with a pressure level that is too low is selected, it may be dangerous due to overpressure during operation. Therefore, before connecting the hose, check the equipment nameplate parameters and hose markings to ensure that the two match.

Prevent excessive bending and kinking of the hose
Pressure washer hoses should be kept in a natural bending state during operation, and there should be no sharp bends or kinks. Excessive bending or knotting will cause uneven force inside the hose, resulting in increased local wear or concentrated pressure, causing rupture or leakage. When operating, try to avoid pulling the hose too tight, leaving appropriate margins so that the hose can move flexibly with the operation.

Avoid direct contact between the hose and high temperature or sharp objects
The pressure washer operation environment is complex, and sometimes there are high-temperature objects or sharp edges. When using the hose, it should be kept away from high-temperature heat sources and sharp objects to prevent the outer layer of the hose from melting or being cut due to high temperature. If the outer layer of the hose is damaged, even if the damage seems minor, it may become a hidden danger of high-pressure water leakage. Therefore, the environment should be checked in advance at the operation site, and if necessary, a protective cover can be added to the hose or a support frame can be used to guide the direction of the hose.

Ensure that the hose is firmly and reliably connected
The connection between the hose and the pressure washer hose and the spray gun must be firm and reliable. Before each operation, check whether the joint thread is locked and whether the quick connector is buckled in place. A loose connection is easy to fall off during high-pressure operation, causing high-pressure water column splashing or hose swinging, posing a threat to personnel and equipment. In addition, standard connectors that match the equipment interface should be selected to avoid using non-standard or temporarily modified connectors.

Prevent hoses from being crushed by vehicles or heavy objects
When working outdoors or in large venues, attention should be paid to the location of the hose to avoid being crushed by vehicles, mechanical equipment or heavy objects. The hose is flattened or squeezed under high pressure, which is prone to rupture of the inner layer or partial failure, affecting the safety of use. During operation, a hose bracket, protective sleeve or hose hanging on a fixed object can be used to reduce the risk of the hose contacting the ground.

Safe pressure relief when stopping operation
After the operation is completed or temporarily stopped, the power supply or power source of the high-pressure cleaner should be turned off first, and then the pressure should be gradually relieved according to the steps. Directly unplugging the hose connector or not relieving the pressure before closing the spray gun may cause high-pressure water column splashing or hose rebound due to residual pressure release, causing accidental injury. After the pressure relief operation is completed, the hose is stored or maintained, which can effectively ensure the safety of the operator.

Reasonable storage and regular maintenance
When the pressure washer hose is not in use, it should be avoided to be randomly stacked in a humid, high-temperature or sun-exposed environment. Long-term poor storage will accelerate the aging of the hose. It is recommended to coil the hose neatly and place it in a dry and ventilated place. At the same time, a regular inspection and maintenance plan should be established to inspect and clean the hose surface, joints and sealing rings to promptly identify and deal with potential hazards.