On 13/05/2018 11:19, Roger Hayter wrote:
Brian Gaff wrote:

That sounds very suspicious. All the features I've seen run at low voltage,
unless its a huge thing as often used in shopping centres.
Sounds like a nightmare when you consider what rats can do to cables on the
ground with no protection.
Brian

Mains voltage submersible pumps are commonplace.

Yes, I had one in my smaller fishtank - along with mains voltage
submersible heaters in both tanks.

SteveW