There is no overflow in my bathroom sink. What are the regulations for that?

Many decorative sinks are made without an overflow. For these to be used, there must be a floor drain in the room. Additionally, these sinks require a click-up drain designed for sinks without an overflow—and not the drain valve that comes with the faucet. Different types of click-up drains can be found in our product section.

The click-up drain may not necessarily fit all sinks without an overflow. Make sure that your chosen click-up matches your requirements. There are different dimensions depending on the thickness of the countertop/sink that the part needs to "grip around."