My toilet has a weird flush to it and sometimes splashes, but typically most toilets don't.
The ones at our hospital on the other hand. WOAH crazy power and plenty of splashback. Those eat cell phones for breakfast.
Would be inconvinient to locate the flusher away though, but you could have it powered by an actuator that is then connected to a 3 way switch. Well, not even that complicated, just parallel would do.
Or have a methane and ammonia detector inside the toilet bowl that flushes automatically. Somewhere, somebody probably has a patent for this already. :biggrin: