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TerraMex · 05-06-2003, 01:16 PM

As long as the magnet is isolated from the water.

Usually having a relatively strong magnetic field in water is a big "no no". It will eventually interact with the ions in the water and create a nice layer of magnetized compound around the magnet, twisting its fields . The way to prevent this is a electromagnet with an AC signal. And we'd be back to the electric current inside water.

But it might work. Using distilled water, and with a small magnet.And if not a Reed Switch, a Hall sensor could also work.

05-06-2003, 01:16 PM	#43
TerraMex Cooling Savant Join Date: Nov 2002 Location: Portugal, Europe Posts: 870	As long as the magnet is isolated from the water. Usually having a relatively strong magnetic field in water is a big "no no". It will eventually interact with the ions in the water and create a nice layer of magnetized compound around the magnet, twisting its fields . The way to prevent this is a electromagnet with an AC signal. And we'd be back to the electric current inside water. But it might work. Using distilled water, and with a small magnet.And if not a Reed Switch, a Hall sensor could also work. __________________ "we need more cowbell."