We visited on Saturday to find the ‘plug’ not functioning well and the closest pool virtually empty, despite the hose being in place. We cleaned the green slime off with the provided brush, then fashioned a new ‘plug’ by placing large rocks into the drainage pipe, then the piece of cloth, to level the ‘plug’ up with the base of the bath, then added the layer of rubber provided, to give a reasonable seal. The pool was full by the time we returned on Sunday afternoon. It had obviously been enjoyed – beer bottles and tops everywhere! 38.3 degrees when we used it, when the surrounding air temperature was 8 degrees. Nice spot…