The typical pipe sizes for domestic water supply are 15mm and 22mm.
Domestic Water Pipe Sizing Explained
Choosing the right pipe size for your domestic water supply is important for optimal water flow and pressure. Here’s a breakdown:
- Internal Supply Pipes:
- 15mm pipes: Commonly used for supplying individual fixtures like taps, showers, and toilets. They’re adequate for delivering water to a single point.
- 22mm pipes: Usually used for the main supply line in a house and often to feed multiple bathrooms or areas with a higher demand.
- Commercial Settings:
- 28mm pipes are often used in commercial environments where greater water volume is needed. This is due to the higher number of fixtures and increased usage.
Common Pipe Sizes in Detail
| Pipe Size | Typical Use |
|---|---|
| 15mm | Individual taps, showers, toilets |
| 22mm | Main supply lines, feeding multiple bathrooms |
| 28mm | Commercial settings, high water demand |
Factors Affecting Pipe Size Choice:
- Number of Fixtures: More fixtures and outlets require larger supply pipes to maintain adequate water pressure.
- Distance: Longer pipe runs might need a larger pipe diameter to counteract pressure loss.
- Water Demand: Properties with a high water demand, such as multiple showers running simultaneously, might need larger pipes.
- Local Regulations: Local plumbing codes and regulations can influence pipe size requirements. Always consult these before any installation.
Key Considerations
- Pressure Loss: Incorrectly sized pipes can lead to reduced water pressure.
- Flow Rate: An adequate flow rate is needed for efficient use of appliances and fixtures.
- Cost: While larger pipes offer increased flow, they can be more expensive. Choose the optimal size based on your needs and budget.
Using the correct size of pipes will ensure consistent water pressure and flow throughout your home, preventing issues such as slow-filling baths and showers, or low water pressure in general. It's important to consult with a qualified plumber to correctly size and install the necessary plumbing system, to ensure a reliable water supply.
