After the installation of a new water tank, the water pressure became erratic and weak. At times, it is as if there is air in the pipes at the sink faucets; at times the water pressure is simply weak; whenever more than one water source is used, the pressure is almost depleted.
Is it possible to correct this on/in the water tank itself? Is it a valve on the tank? Right after installation, there was water leaking from a valve on the side of the tank. I tightened the valve and the leakage stopped. Would this have anything to do with lost pressure?
Thanks for your help.
Ladyrev