I just installed a bathtub spout with a stopper (to send water to the shower spout) last night. I turned on the water and the tub spout worked great. I then pulled the stopper on the end of it up, and water came out of the shower head just wonderfully. I then looked back at the bathtub spout and noticed that water is coming out of the drain hole at the back of the spout. I was wondering, is this normal? I don't have a leak that I can see in my pipe.