Build blow wells on your own

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A blow well is relatively easy to build compared to other garden fountains. Even laypeople can therefore usually build a pothole themselves without great expense. Nevertheless, there are a few tips you should follow in order to avoid problems with the blow well later.

A blow well with a handle pump is relatively easy to build yourself.

What you need:

Earth auger
Sledge hammer
Well pipes
Ram filter
Impact head
Sleeves
hemp
Sealing paste
Schwengel or E-pump

Notes on building a blow well

If you want to build a pothole to supply process water, you usually need a permit under water law.
Information about the respective legal situation in your federal state as well as information about detailed You can obtain regulations regarding the nature of the soil and other things from municipal authorities Authorities.
In any case, the depth of the groundwater must be determined before you start building a pothole. If the groundwater level is lower than 8 meters, pumping water with a blow well could be problematic.

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Here's how you go about building

Pre-drill with an auger until you encounter moisture in the soil and you have reached the water-bearing soil layer.
You can often recognize the water-bearing soil layer by the fact that the auger has been pulled out and cleaned and then reinserting the handle protrudes a good bit higher than due to the pressure before.

Building a well - you should pay attention to that

There are a few basic rules that you need to follow when building a well. …

Now screw the pipes of the percussion well and the ram filter with the sleeves to the length of the borehole so that the pipes are in contact in the sleeves. Finally, the impact head is screwed on.
When screwing, make sure that all threaded connections are well sealed with hemp and sealing paste.
With the help of the sledgehammer, you can now hit the screwed pipes into the ground with targeted blows on the hammer head. Hence the name Schlagbrunnen.
Make sure to hit the impact head exactly from above so that the force is transmitted vertically downwards. Otherwise the pipes could break when hammered in.
When building the impact well, hammer the pipes into the ground at least so far that the upper edge of the ram filter is 1 m deep in the groundwater.
Basically, the impact well is now ready for use. You now only have to mount a Schwengel or E-pump on the last connecting sleeve and pump the well.
Make sure, however, to rinse the filter and the pipes of the percussion well with water before connecting the pump in order to remove any contamination.