The pressure washer water inlet is where clean water enters the pump. It is a critical connection – if the inlet is restricted, leaking, or drawing in air, the pump can be starved and damaged. Understanding the pressure washer water inlet helps prevent common problems.
The inlet connects to your supply hose (garden hose) and typically has a filter screen to catch debris. Keeping this filter clean and connections tight is essential for pump longevity.
Quick Note: Never use a high-pressure hose on the inlet side – always use a standard supply hose. The inlet works under suction, not pressure.
Common Issues
- Clogged inlet filter. Restricts flow and causes cavitation.
- Air leaks. Loose fittings let air in, causing the pump to lose prime.
- Undersized supply hose. Restricts flow.
- Kinked hose. Stops water flow.
- Damaged inlet screen. Allows debris to enter the pump.
Maintenance Tips
- Clean the filter regularly. Remove and rinse the inlet screen to remove debris.
- Check connections. Ensure the supply hose is tight and leak-free.
- Use the right hose. 5/8″ or 3/4″ garden hose for adequate flow.
- Keep it kink-free. Avoid sharp bends.
- Replace damaged parts. Cracked fittings or torn screens should be replaced.
The Bottom Line
A clean, unrestricted water inlet is essential for pump health. Keep the filter clean, connections tight, and use an adequate supply hose to prevent costly pump damage.