Yeah I only change it when all 6 are there. I have a small waterer thing and I have one of those 2 dish plastic bowls so I fill the waterer and the 2 plastic bowls. They all drink their fill I just worry about it freezing and them being thirsty. It's just so cold at times here I could change the water 10 times a day and still find it frozen solid. They do drink when the water isn't frozen so I know they are getting water.
Right now it's 29 with a wind chill of 23 so it's not freezing solid, I was able to break up the top layer of ice but that is a very short term solution. I did it before I left to put Bobby to bed then came back and had to do it again(about an hour later.) Really it's the best that I can do. The bowl would have to directly exposed to the elements out in the open so it doesn't sound like it would even be a feasible idea since it drop below 20 enough that it would be a waste. In this weather it's ok because I can just break up the thin layer of ice. I go out at least twice a day to feed them and then to take up their food at night so the raccoon doesn't eat it, and I forgot to do that tonight, stupid thing(and i don't mean that in a bad way, he knows where he might find food, and he eating it and I don't blame him, I'd do the same if I was him) ate all the food left.
Also, when my son has school I also have to leave to go pick him up so I could also try and remember to check the water to see if it's frozen. I always check water levels at that time but I sometimes forget to make sure it isn't frozen.
I will say that at night they are usually curled up in their cat house or sleeping wherever it is they sleep at night(we got a small doghouse and I see 3 to 4 of them coming and going so I know 3-4 sleep there and that is all the black ones. I have no clue where Mama sleeps, I have never seen her sleep here and I know Blue(Gray Kitty has been around long enough that he needs a name and since he's a beautiful Russian Blue I decided his name is Blue) either sleeps under our shed or possibly somewhere else. So overnight isn't much of an issue since they are all curled up either in the cat house or wherever it is they sleep. I also know most, if not all of them go off and do whatever it is that they do during the day. Like I said they have the neighbor's pond which is always unfrozen if they were desperate for water but they receive and drink enough water that they don't have to do that unless they want to.
I just worry that they'll be thirsty and not be able to drink their water.
I was just hoping there was another solution that didn't involve electricity. I already do change out frozen water when ever I notice it if I can't just break a thin layer of ice. They do know they get water when they get fed and I know they all drink so I'm assuming they'll be fine with what I'm doing. In summer I went nuts trying to keep all the bowls filled and I know I will again this summer. Why can't I live in a nice warm place like Hawaii where I don't have to worry about freezing water bowls.
I just want to thank ya'll for your help, it makes me feel better that I'm not the only one with this issue and for the suggestions on how to deal with it. I think I just worry too much, I know I'm doing the best I can and if a heated bowl was feasible I'd do it but like I said it would be totally exposed to the elements and be mostly useless due to the temps here.
Taryn