---
title: Which PE pipe should I use (24 mm Blu-Lock, 25 mm, 32 mm)?
description: 25 mm PE pipe is standard up to approx. 1.8 m³/h or 100 m. For more water or longer distances, use 32 mm. Blu-Lock is the quick plug-in version.
---
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# Which PE pipe should I use (24 mm Blu-Lock, 25 mm, 32 mm)?
## 25 mm to approx. 1.8 m³/h or 100 m, then 32 mm.
In most gardens, **25 mm PE pipe** is sufficient. You can use this if your system requires **less than approx. 1.8 m³/h** at any one time or if the pipe is **no longer than approx. 100 m**.
If you want to transport **more water** at the same time or have **longer distances** to cover, use **32 mm** so that the pressure does not drop as much.
**24 mm Blu-Lock** is the quick version with plug fittings – you can use this instead of 25 mm, but you must then use the appropriate Blu-Lock fittings. Furthermore, **Blu-Lock must never be used in the permanent pressure section**.
**In short**: 25 mm = standard, 32 mm = lots of water/long distances, Blu-Lock = quick, but separate system.
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