running water supply here only lasts for about 3 hrs in the ,morning. i have a 80 litre storage bucket but i dont like to lift the mug for every use when tap water supply is not there. but i have an old small submersible pump. i think i can control its speed with a regulator. but the wires etc would be dipped inside the bucket.....who knows when insulation will fail.......any better safety solution.