How do I prime my Hypro Self-Priming Centrifugal Pump before its first use?

[RuthLynn]

Priming your Hypro Self-Priming Centrifugal Pump correctly is crucial for optimal performance and longevity. Here's a step-by-step guide to ensure your pump is primed effectively:

1. Fill the Priming Chamber: For self-priming models, only the priming chamber needs to be filled with liquid. It's essential that this chamber is completely filled before starting the pump to prevent damage to the mechanical seal, which relies on the liquid for lubrication.

2. Priming Process:

   • Locate the filler cap at the top of the pump, typically where the discharge line connects.
   • Remove the filler cap.
   • Fill the priming chamber with liquid until it reaches the level of the inlet port.
   • After use, always flush and drain the priming chamber to prevent chemical corrosion and potential damage from freezing. To drain, remove the lower drain plug located at the bottom of the casing.

3. Starting the Pump:

   • Before starting the engine, confirm the priming chamber is filled with liquid and that the discharge hose is securely connected.
   • Turn the engine switch (usually located near the recoil starter) to the ON position.
   • Turn the fuel valve to ON.
   • Slightly open the throttle lever.
   • Adjust the choke lever based on the engine's temperature (cold or warm).
   • Start the engine by quickly and firmly pulling the recoil starter. Repeat until the engine starts.

Following these steps will ensure your Hypro Self-Priming Centrifugal Pump is primed correctly, leading to efficient operation and extending its lifespan.