When they are thirsty, usually first thing in the morning, as soon as they come inside and the last thing before bedtime, they jump up on the bathroom counter and wait for me or one of the girls to turn on the water.
The water stream has to be just right though...not too much because it sprays them in the face...and not too little because that just takes too much time and energy. They also ALWAYS jump up on my sink...not Ed's. It may have something to do with how he yells in that gruff sounding man voice, "Hayah, Get out of here, cat!" whenever he catches them in the act.
Just the right water pressure is especially important to the cats' efficient tongues. They need to be able to get as much water as possible in a short amount of time...making sure no unnecessary water touches them before Ed comes in and scares them away.