ᐅ Pump at rainwater cistern broken? Any experiences?

Created on: 11 Jun 2025 17:56
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Bulldrob
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Bulldrob
11 Jun 2025 17:56
Hello,

Recently, my cistern pump stopped working. At first, it was pumping irregularly, meaning sometimes it worked, sometimes it didn’t.
So, I took the pump out of the cistern and cleaned it roughly, but it’s not easy to open it up.
Then I put it back in, and the problem was that the fuse always blew when I plugged it in.
So, I took it out again, waited about a week, and put it back in. Now the fuse doesn’t blow anymore, but the pump still doesn’t move any water.

The pump is the following model: Umbra Pompe Acuafluss.
The pump simply sits in the water, is plugged in, and is supposed to pump water when the tap is opened.
Close-up of a shiny metal pipe with printing and reflections.

Submersible pump made of stainless steel with grey spiral hose on grass; black float ball next to it.
schubert7911 Jun 2025 18:33
Nice campfire story… but what exactly is your question?
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wiltshire
11 Jun 2025 18:34
If this pump is simply lying horizontally in the cistern, then you have been operating it horizontally. This design of the submersible pump is not intended for that. Buy a suitable pump, and you will have years of trouble-free operation.
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Bulldrob
12 Jun 2025 12:44
I wonder if anyone has an idea what might be causing this, I thought it was self-explanatory 😉

According to the manual, the pump can be operated both upright and lying down.
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k-man2021
12 Jun 2025 13:08
If the pump stops working, the pressure switch is built into the pump, it cannot be opened, you are clearly not a professional, and the fuse keeps blowing, it is definitely time to dispose of the pump…
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Bulldrob
12 Jun 2025 13:21
The pump can be opened, but not easily. Since the manufacturer probably does not want this, I thought I would first ask here if anyone knows this problem and has been able to fix it easily before I take it apart.