Quote Originally Posted by vim
I am just affraid to put in something new and then what if it fails when I am away. What if watter keeps filling up? I am just kind of paranoid on these things :-(.

About closing skimmer. What do you mean by that? I have skimmer that has 2 holes at the bottom. One goes to pump, another to main drain. So if water level is below skimmer line, that water starts to come in from main drain. Do I have to close anything in this case?
Skimmer: Only a concern if you decide to put your pump on a timer (I'm not recommending leaving it running 24/7). I'm talking about closing the valve to the skimmer to disable it.