I have a 4 lamp fixture with 2 two lamp ballasts. Can I replace with one 4 lamp ballast?

Well, in order for it to keep moving, it has to stay above freezing. Since the water lines which bring the water to your house are buried deep enough not to freeze in winter--unless it's in a very very cold climate, the ground doesn't freeze to more than a couple of feet in winter--but once the water lines come out of the ground they can be vulnerable to freezing unless protected by being in a heated house. So how cold can the water coming out of a faucet get?

Anywhere down to 33F, but if it's that cold it's because it has been sitting in pipes above the ground. The water in the water lines below ground is probably not going to get much below 45F even in winter, because the ground at the depth of the pipes can't get any colder. Unless, of course, someone goofed and buried the pipes too shallow where they are vulnerable to freezing.

If you want to know what temperature your cold water is, get a thermometer and measure it, after running it long enough so you are measuring water that has not been sitting above ground.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.