The water flows from underground pipe when the water in main pipe is released to 1st floor of the building but not to the overhead tank which is on 5th floor.
The pressure seems to be not building up for the overhead tank – seen in the meter fitting on the pipe, but for the 1st floor it seems to be fine. What could be the reason?
Plumbing – Water not reaching the overhead tank from mains pipe- flow ground to top to the overhead tank
plumbingrepairwater-pressure
Related Solutions
You may need an aerator. If it needs replacing, then the water may spatter a lot. The aerator is the piece that screws into the end of the spigot. It limits the flow of water to between 1.5 and 2.5 gallons per minute and entrains air into the water stream to prevent splashing. From what you describe, it may even be missing. You can pick one up at any hardware store.
Some taps and other fittings and appliances are rated for either high-pressure supply (direct mains) or low pressure supply (from a header tank in the building).
If any occupants have any fittings or appliances that are only rated for low-pressure, converting the building to high pressure could cause problems.
As others have noted, converting completely from low-pressure to high pressure means isolating and emptying the old header tank.
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Best Answer
Water pressure at the ground level is the issue here as your pipes go up you lose pressure at .445 pounds per foot 5 stories up ~50’ your pressure would be ~22 psi less this may not be enough pressure to open the valve to the tank. If you are on a well you can increase the cut out pressure on your pump. If on a city water system contact them about the low pressure. Other than that a booster pump to increase pressure may be needed to provide enough pressure for the tank to fill.