Which height does my water seal need to be?

The water seal height is the height of the water in the siphon that blocks the air from the sewer. According to the European building standard EN 1253, a shower drainage system must be installed with a water seal (height) of at least 50 mm. Sometimes in renovation projects, there isn’t a lot of space available in the floor. A lower water seal height also means a lower installation depth. So, in this case, a siphon with 30 mm water seal can be applied.

Note: a lower water seal height (i.e. 30 mm) means less drainage capacity and can dry out more easily when it isn’t used for a longer period of time, for example during holidays.

Contact us
  • This field is for validation purposes and should be left unchanged.
World map

Find our website that's made specifically for you

Flag

You are visiting our Global website. Based on your language preferences, you might be interested in our website for , where you can find information about products that are available there.