When a clearo or head gets junky throw it in the vodka. Use a new head, when its bad, swap it with the one thats been sitting days in the vodka. As long as you havent burnt the crap out of your wick and it fires it will work nicely. With water you have to boil the water, swish it around, and you should not leave it completely dry for a period especially after being wet, so you want to get some juice on that coil before it has a chance to corrode at all.