eazi filler bottle

Help my ezie filler bottle spout has stopped working due it freezing up.

The water inside is not frozen but the spout has any ideas??

I am not 100% if putting somthing in the water would help due to it being the spout they lick being frozen.

http://www.google.co.uk/imgres?imgu...filla+water+bottle&um=1&hl=en&sa=N&tbs=isch:1

I once had a problem with a non functioning dripper as a tiny bit of hay got stuck in the valve. After fiddling with it with a magnifying glass and some tweezers it eventually started working.

It works for a while if I run it under hot water which I did earlier.
Two hours later checked it and it stopped working again.

Not much you can do for this unfortunately. My old outdoor bunnies got a water bowl in the winter with a ball in it - the ball stops the water freezing over. The bowl also means that even if it does freeze they still have a water supply, even if it is only a block of ice to lick.