|
OK, never attribute to ill motives what can reasonably be explained by stupidity.
It is (theoretically) well known that in the event of a loss of water supply
due to power outage, flood, hurricaine, tornado, etc., there is an emergency source of water in the SUPPLY TANK (NOT the bowl) of toilets, since the common American toilet uses potable water as the flushing source. For that matter, we also use potable water to pressurize our fire hydrants.
I suspect that what the sign MEANT to say was:
"We use gray water (recycled water) to flush the toilets, so in an emergency
DO NOT think water in the supply tanks to the toilets is clean potable water."
Of course, such a sign is meaningless -- and will subject you to well deserved
ridicule -- when posted above a toilet or urinal flushed by a vaccuum break
system without a storage tank.
|