Overhead Tank - Air Vent on tank delivery pipes
Asked Mar 4, 2009, 10:41 PM
I'm currently constructing my own house and presently we have started plumbing. Our plumber told me that we need to put a air-vent on the tank's delivery pipeline in order to release the air-lock. Please find the attached image. [Overhead cold water tank is the common method in India]
I already have a air-vent on the top of the tank and my questions are:
a) do we need to have another air-vent on the tank's delivery pipes?
b) since this is for air-release, will it work out if we take a diversion on the vertical pipe? Shouldn't it be on the horizontal pipe? Another problem we have is that the there is no room for air-vent in the horizontal pipe. It is placed in the ceiling of the under-tank room. More preciously, from tank to the gate valve, I have no room for any additional fittings.
Could you please advise me, if this air-vent is necessary, and properly placed (as in the image)? If not properly placed, could you please advise me the correct position?
Thanks in advance.