Help with SPEEK!

I take my pup (9 weeks) out about every 2 to 2 1/2 hours, but some times she has to go sooner and tells me by looking at me and peeing. I would like to teach he to make some kind of sound at the door to let me know but I have spent so much time teaching her not to bark I don't know where to start. She is very smart so I know she can do it I just don't know how to teach it, any ideas?


Is it possible for her to drink to much water? She drinks about a 2 litter a day my wife thinks she drinks when she gets bored. Because every time we stop her from chewing on the kids toys it seems she goes and gets a drink, what do you think?