The toilet/urinal is clogged and will not flush or is overflowing.
A sink, fountain, floor or roof drain is clogged.
The fountain is not working. The battery might be dead.
The fountain filter needs to be changed as it is showing another colour other than green.
A toilet or sink is leaking and needs to be attended to.
The shower is leaking and needs to be attended to.
There is no water coming out of the sink. The battery might be dead.
The toilet will not flush. The battery might be dead.