The Sink In addition to our traditional, purpose-built laundry tubs, other sinks may be considered suitable for use in the laundry. Look for a single deep bowl for soaking clothes or filling buckets. If space is limited, go for a standard single bowl kitchen sink. Colour Brighten up your laundry with some colour. This can be done with one of our copper Spectra or black Santorini sinks or maybe with a black or white Vilo mixer tap. Overflow and Bypass plumbing The Oliveri Laundry range is available with an overflow and bypass plumbing option. An overflow can safeguard against accidental overfilling, while the bypass plumbing will allow washing machine grey water to enter the drain even while the tub is in use.