At the inflow connected to 1 1/2 in. pipe, I have a 2 hp pump. The main 3 in pipe is going vertically upward to the ground floor up to the fifth floor.
Frilly little dresses on a daily basis aren't practical. If it's a special occassion it's one thing but for every day it's plain nuts. I've got a daughter on the way in June and while I have some cute little dresses for her I don't expect her to wear them every single day of her life. She has a balance between those (both frilly and simpler) and things like little pants with shirts to wear as well for every day play when she starts to sit up and get mobile. Until then it will be saving the dressed up or casual for photos, church and visiting places and sleepers or rompers at home for tummy time play and regular wear. I also have a 3 year old and while he has nicer things to go out places in and that are considered dress clothing I don't make him wear it every day. His everyday play stuff is either shorts or jeans, a t shirt or sweat pants and a simple play shirt if it's a little cooler out. Kids can't be kids if they are dressed up all the time when they want to run, jump, climb, play and do things.
If you have a tube, then that is a rubber sheet and adding another one will be useless. The problem with your test is that the air pressure in the tube only is much much lower than the pressure when it is in the tire and it is very hard to hold an inflated tube under water for other than a fast leak looking at bubbles.Inflate the whole wheel to pressure and do what it takes to keep the whole thing under water. I think you will find a fine stream of bubbles coming off the wheel, possibly even at the valve stem. Tracking where the leak is may be more complicated as bubbles can travel inside the tire to exit point. I think your best choice is to just buy a new tube for a few dollars, carefully inspect the inside of the tire with your finger tips to make sure there isn't a very fine nail, glass, or thorn point penetrating the tire and then install the tube.
