Max Water Pressure from a gravity fed water tank
I have a water tank on the roof to gravity-feed the house. Will I get more pressure coming out of the tank with a 2" line mounted on the side wall of the tank (at the bottom), or a 2" line mounted on the bottom surface of the tank in the middle?
Another Question Regarding Gravity Flow System
Lets say the tank (on roof) has a capacity of 1200 liters. If I come out of the tank with a 1" line, run this line across the roof (horizontaly) and then reduce to a 3/4" line vertically downwards through the walls to the fixtures, what size of air inlet tube do I need at the top of the tank to maximize pressure throughout the system?