Back from a 10 day holiday, and the makeshift water supply system I constructed worked!!
Filled a large bowl with water. Placed a little stand inside it so that Trappy wouldn’t drown.
Cellophane to prevent evaporation and a strip of cotton wool attached through the bottom of the pot to suck up the water at the bottom of the bowl for when water level dropped below Trappy’s stand.
(Never did thanks to the cellophane)