ᐅ Is it possible to use a submersible pump to draw water from a trench?

Probably a really silly question:
We have a submersible pump (just in case) for emergencies if the basement should ever flood. It has never been used because it was never necessary.

Now we have newly built our house, and the garden will be landscaped soon. Behind the property, there is a large ditch with a lot of water in it. It could be used for irrigation. This probably won’t work with the submersible pump, right? So, we would need to buy a proper garden pump?

The submersible pump can transfer water from the trench to the garden.
If it is a high-pressure pump,
sprinklers and similar devices could be operated directly.
Otherwise, use a garden pump with a suction hose and a pressure connection, such as Gardena.
If the water is not clean, a filter should be installed; otherwise, sprinklers and garden hoses may become clogged.

Everything that @Nida35a has written is correct.
However, most submersible pumps have relatively low pressure and flow rate. Accordingly, the irrigation zones need to be designed accordingly. You do not need a “garden pump.”

Are you allowed to use the water freely?

Heidi1965 schrieb:

Behind the property, there is a large ditch with quite a bit of water in it.

Hello Heidi1965

that sounds like a natural habitat or wetland.
Do you really want to use that water for your garden? As soon as that becomes known, it will cause serious trouble.

Steven

It is a drainage ditch. Our rainwater from the roof and the drainage system also flows into it. Why wouldn’t it be allowed to take water from there? The alternative would be tap water. It doesn't make sense when there is a ditch running behind the house.

No way!
Refer to the Water Resources Act. WHG. Sections 8 and 9 mainly.
A permit is required for the use of water.