Well, you are right, the 3/4 inch PVC is a blonde hair too big, due to the lack of pressure, it is holding though. A small amount of silicone would be fine but I have chosen to build it all dry for obvious reasons. I am happy though nonetheless. One thing I will be changing, the ball valve is overkill! Need a better suited valve for ease of adjustability and looks.
It is working, and there is no way that red adjustable valve can leak LOL
Will improve on the effort and keep it, for sure!