Selecting the correct pipe size is essential for achieving efficient water flow, reducing pressure loss, and improving the overall performance of your pool system.

40mm Pipe
Commonly used on smaller pools, spas, water features, and return lines where lower water flow is required. It is ideal for short pipe runs and lower-capacity equipment but is generally not recommended as the main suction line on larger pools.

50mm Pipe
The industry standard for most residential swimming pools. Suitable for skimmer lines, main drains, return lines, and connections between pumps, filters, chlorinators, and heat pumps. A 50mm plumbing system provides good water flow while keeping friction losses low, making it the preferred choice for most domestic pool installations.

80mm Pipe
Used on large residential, commercial, and high-flow pool systems where maximum water movement is required. An 80mm pipe significantly reduces friction loss, allowing pumps to operate more efficiently over long pipe runs or when supplying multiple skimmers, in-floor cleaning systems, large filters, or high-capacity water features. It is also ideal when designing energy-efficient hydraulic systems that operate at lower pump speeds while maintaining high flow rates.

Choosing the correct pipe size ensures better circulation, improved filtration, lower operating costs, quieter pump operation, and longer equipment life. Designing a hydraulic system with the appropriate pipe diameter is one of the most important factors in creating an efficient, high-performing swimming pool.