The primary difference between low pressure and mains pressure lies in the water pressure each system provides, significantly impacting water flow rates and even water bills.
Understanding Water Pressure Systems
To fully grasp the difference, let's examine each system individually.
Low-Pressure Hot Water Cylinders
- Pressure: Generally deliver water at around 75 kPa (kilopascals).
- Characteristics: These systems often rely on gravity or a small pump to provide water pressure.
- Example: Older hot water systems might use low pressure, resulting in lower flow rates from taps and showers.
Mains Pressure Systems
- Pressure: Supply water at a significantly higher pressure, up to 500 kPa.
- Characteristics: They connect directly to the municipal water supply, utilizing the pressure provided by the water company.
- Benefits: Mains pressure systems offer robust water flow, allowing multiple fixtures to be used simultaneously without a significant drop in pressure.
Key Differences in a Table
| Feature | Low Pressure | Mains Pressure |
|---|---|---|
| Pressure (kPa) | Around 75 | Up to 500 |
| Water Flow | Lower | Higher |
| Source | Gravity/Small Pump | Municipal Water Supply |
Impact on Water Bills
While not directly stated, the provided reference does mention that the pressure can affect water bills, implying that high pressure systems may use more water.
Considerations
Choosing between low and mains pressure depends on factors like existing plumbing, desired water flow, and local water pressure regulations.
