I have single story house. The 550 liter water tank is located on its slab 3.15 meters above the floor. The water tank is fitted with 1.5" outlet pipe & 0.75" pipe connected with a reducer socket, but the pressure still is very low. How can I overcome this low pressure?
Plumbing – Very low pressure
plumbing
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.
Pressure
In a system fed from a header-tank, the pressure depends only on the height of the tank. To increase pressure you have only two or three options:
- Raise the tank higher.
- Install an electric pump (these are often used for showers)
If your header-tank is filled from a high-pressure municipal supply, you would probably get better pressure from that directly but in most places this would be a large job involving extensive knowledge of plumbing and local laws or codes. Your existing pipework and fittings might not be suitable for high-pressure.
Flow rate
The rate of flow is affected by
- pressure
- diameter of pipe
- length of pipe
Half-inch pipe is usually adequate for sinks, basins, showers etc.
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Best Answer
The distance from the top of the water level to the faucet determines the pressure at the faucet. 1 meter =1.42 psi, 2 meters=2.84 psi and 3 meters=4.26 psi (not much pressure). Remember you measure from the water level to the faucet, not to the floor. To get more pressure you need to raise the tank or add a pump system. The pipe size has little to do with the delivered pressure, it does however control the volume of flow.