Not all the catch basin are the same size.
When we install a catch basin for a submersible pump in the residential sector we use pits that have a dimension of 18”X24”. This dimension is ideal to capture water from the French drain for a regular size house. However, this is not the case when we waterproof the foundations of a large building and we have to capture a lot of water from the water table. In this case, much larger ponds must be used. They’re made of prefabricated plastic and sometimes we’ll build a custom catch basin in reinforced concrete. Regardless of the size of the project, we adjust our French drain system according to the water flow.