Successful use of the suction pump in the garden

Suction pumps other pumps for the garden

There are essentially two types of pumps used in gardens, suction pumps and submersible pumps.

• Submersible pumps are immersed in the liquid they are supposed to pump and can be used in a variety of ways. The disadvantage is that these pumps have to be lowered below the water level with a correspondingly long supply line for water that is deep below the surface.
• Suction pumps remain outside of the liquid they are supposed to convey. They suck this in via suction lines and transport the water to the place of use via a second hose. But suction pumps have the advantage that they do not have to be lowered to the water.

This is how suction pumps are used in the garden

If you want to pump water from a well, a suction pump is usually better than a submersible pump.

• Since the pumped water does not get directly into the engine, filtering the suction pump is easier. You should definitely integrate a suitable suction filter at the end of the suction hose.
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Install the hand pump in the garden

Hand pumps in the garden have the advantage that you can always ...

• The term "self-priming" is misleading because this expression suggests that you only have to connect the suction pump and the water pumping starts at the push of a button. If the suction pump is based on a centrifugal pump, the entire suction pipe must be flooded because centrifugal pumps cannot deliver air.
• If you use a reciprocating piston pump, at least the piston must be filled with water. Lever pumps, which are reciprocating pumps, must therefore be cast on, that is, when pumping, water is poured into the pump chamber from above.
• Especially with pumps that are driven by hand, you should use a non-return valve, which prevents the water column from flowing back again. Otherwise you will have to refill the suction tube every time you pump.
• Make sure that the suction line does not end at the bottom of the well, as this would suck in mud and sand unnecessarily. The suction line ends optimally approx. 1 m above the bottom of a pool of water. In addition, suction pumps should only run for a short time when a well is started up for the first time, so that the suspended particles do not collect on the pump filter.

Remember that the geodetic suction height, which is caused by the air pressure, can be a maximum of 10.33 m at a water temperature of 4 ° C and 0 m above sea level. Due to technical losses, even a good suction pump cannot properly prime deeper than 7 to 8 m.