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Unfortunately, if you choose a bad submersible pump, it is not only the electricity bill that can increase. When the submersible pump is overselected in terms of water delivery, not only is the well at risk of siltation, but the hydraulic part of the submersible pump cannot be vented in all cases, so the pressure switch cannot be turned off in all cases. Find us on our website https://szivattyuvilag.hu/ https://szivattyuvilag.hu/szivattyuk