The hand pump in the garden

Many gardens have their own water supply from their own well. You have the opportunity to use an electric water pump or a manual or manually operated hand pump for the garden. What should be considered with a hand pump for the garden and when it makes sense, you will learn in the following guide.

Typical hand pump in the garden: the swing pump

The classic garden water pump, which is operated with muscle power, is probably the swing pump. The well itself, from which the water is extracted, may differ:

  • Suction tube made of stub or ram tube
  • Well shaft with gravel layer, through which the groundwater can ascend with suction line from the ground up to the pump

Attachment of the hand pump

The rotary pump is usually attached to the suction pipe and is additionally screwed. Next to the pump then a fountain is built, which can be excavated arbitrarily deep. The water is then pumped into this fountain.

Pump type for rotary pumps

Rotary pumps are piston pumps. So it is not a displacement pump, instead there is a hydraulic water supply. The piston pulls air out of the shaft, which is vented in the upper part of the housing (in the case of the rotary pump a pump head). It must be pumped until the pump delivers water.

Function of the rotary pump

The piston has a swivel pump but the cylinder wall relatively much game. Therefore, pumping without proper preparation is usually a failure. The opening at the top of the pump head, through which air is discharged, is therefore not only used for venting. You can fill this opening with water from the fountain. This seals the piston to the cylinder wall and the pump can only efficiently draw in water.

You may need to bleed the hand pump as well as the suction line

However, if the suction line is too long, you may need to pre-fill it with more water. The filling also takes place via the vent opening. If it is a particularly long intake pipe, a so-called foot valve must be installed. This is installed at the bottom of the suction line. It works like a check valve so that there is always enough water in the suction line to be able to pump water quickly and efficiently.

Hand pump and suction line frostproof in winter

In winter, you need to remove a hand pump in the garden but as a precaution. You can never make sure that the pump is actually completely drained. As a result, there would be a great risk of frost damage. But the suction line must then be protected against frost.

Tips & Tricks

If there is already a risk of frost, you should no longer own the hand pump in the garden. Many foot valves are designed so that the water is not completely held in the intake manifold. That is, the water from the pipe flows very slowly back into the well. In this way you can ensure that the suction line is drained even in winter and thus frost-proof. After all, you can not simply open the valve at the bottom of the pipe to drain the water before winter.

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