Self-Priming Electric Pumps for Wells (Jet Type)

How does a self-priming pump work?

Problem: With normal pumps, if a little air gets into the pipe (perhaps because the level of the well drops), the pump stops drawing water and runs idle, risking burning out.

Solution: The self-priming (Jet) pump uses a portion of the water already in its body to create a vacuum in the intake and expel air. This allows it to "re-prime" itself. It's the safety solution for anyone with an inconsistent or difficult water supply.

Correct Installation: The 8 Meter Rule

It is essential to know that no surface pump (of any brand or power) can suction beyond 8-9 meters of physical depth .
If the water level in your well drops below 30 feet, the pump won't be able to lift it due to physical limitations. In that case, you'll need to upgrade to a submersible pump installed directly into the well.

Frequently Asked Questions about Self-Priming Pumps

1. Cast Iron or Stainless Steel?

Cast iron is heavy, reduces vibration, and is very inexpensive, but over time it can rust internally (not suitable for crystal-clear drinking water). Stainless steel doesn't rust, is hygienic, and lasts longer in humid environments, but it costs a little more. Cast iron is excellent for watering the garden; stainless steel is better for household water.

2. Do I need to install the foot valve?

Absolutely. Even if the pump is self-priming, installing a foot valve (or check valve) at the beginning of the pipe in the well is essential. This keeps the pipe full, allowing the pump to deliver water instantly as soon as you turn it on, without having to wait 2-3 minutes each time for it to vent.

3. Can I use it with a Presscontrol?

Certainly. Self-priming pumps are most commonly used in combination with pressure controllers (such as Brio, Genyo, etc.) to create small automatic garden pressure tanks. The combination is robust and reliable.