A4L

This system has a main drain (controlled by a Single Union Ball Valve), which will take the majority of your water.

The emergency drain, fitted with a removable durso, will ultimately set the height of the water in your aquarium, with the durso attachment making the running of the system much quieter than other methods. (approx. 50mm from the top of your tank).

Using 45 Degree elbows where possible, in place of 90 degree elbows, helps to silence your system.