General > General Technical Chat

Looking for small, automatic, bilge sump pump

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Benta:
Just go to your local DIY/Garden centre and look for submersible pumps.
They stand vertically on the bottom of your container and have a float for automatic start/stop.
Downside: they're normally 230 V.
Upside: prices start at 30 Euros.
Example: https://www.ebay.de/itm/255403001155

NiHaoMike:
Can you identify exactly where it's leaking and seal it up?

Benta:

--- Quote from: johansen on April 09, 2024, 07:06:48 pm ---120vac condensate pump.

--- End quote ---
Not very useful in the EU.

johansen:

--- Quote from: Benta on April 09, 2024, 10:25:44 pm ---
--- Quote from: johansen on April 09, 2024, 07:06:48 pm ---120vac condensate pump.

--- End quote ---
Not very useful in the EU.

--- End quote ---

No shit. So buy a 240v 50hz version. Probably more of them than there are 120v units

soldar:
I have been giving this some thought. I was thinking of buying a 12 v SEAFLO Electric Marine Bilge Pump, 350 or 500 GPH and I might still buy one as it is something always useful to have around.
https://www.amazon.com/dp/B07FNY3YRT/
https://www.amazon.com/dp/B07FP85QVB/

But then I thought I might be able to use the suction of the main pump itself. With the pump not working the bilge is, naturally at lower level and pressure but with the pump suction it is very possible it will suck the water from the bilge. (red line in the diagram attached) This has the advantage of not needing an extra pump but it requires
(1) check valve to ensure water cannot flow in reverse from pump down to the sump
(2) valve to shut off the red line and open ONLY when there is water in the sump, otherwise air will get into the system

All in all an extra pump might make more sense. Safer and simpler.

I am still thinking about this.

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