A pressure washer cannot damage a hose unless the hose is not rated for high pressure and the pressure washer gun is off.
As long as water is spraying through the pressure washer hose it should not build up pressure to break the hose.
The water in the garden hose is not pressurized further until it goes through the pressure washer pump.
The difference between a pressure washer and a power washer is a power washes uses heat and pressure to clean things and a pressure washer uses only cold water at high pressure to wash things.
Other than the difference in temperature used the pressure washer and power washer are the same thing but one uses heat and the other doesn't.
Pressure washing is usually less expensive than power washing because it uses less water and isn't as intense as power washing.
Power washers are better for large jobs, while pressure washing is more suited to smaller tasks.
In inexperienced hands, a pressure washer can cause damage to homes or even to your car's paint, trim, or delicate parts.
High-pressure water can strip away protective coatings and even force water into vulnerable areas, leading to rust or electrical issues.
Pressure washers are incredibly strong, and can break skin and cause other injuries.
A pressure washer should never be used on any living thing—no humans, pets, or plants.
Don't use a pressure washer while working on a ladder or on your roof—the recoil could throw you off balance.
Vinyl siding can withstand a powerful gas pressure washer (2,500-3,000 psi).
Aluminum, stucco or soft-grain wood homes will do better with a less powerful washer (about 1,200-1,500 psi).