man thats nice, wish i could do that but i got my own well at my house so i have to treat all the water before i put it in my tank, because the water has high chlorine.jcardona1;1639847; said:its a gravel vac that can hook up to any faucet or garden hose. it makes water changes so much easier. it uses the water pressure from the hose/faucet to creat a very strong vacum for sucking water out of the tank. when you're done cleaning, switch the valve and it fills that tank right back up.
such a life saver!!