Sink Twice Original


by Sink Twice®


Create a Sink and Toilet Combo with Sink Twice


Wash your hands with the clean water, leaving the soapy water to clean your toilet when flushed! Sink Twice is a major water saver, leak detector and a space saver.

Our patent pending "fill cycle diversion" faucet is a significant leap ahead of our competition in water efficiency. The basin has plenty of room on the flat soap holder for foam soap containers and the drain is specifically designed to prevent splashes.

This sink twice model measures 17" and is recommended for small toilets measuring 14" - 16.75" (measured with the lid off). If your tank is larger than 17", please carefully read below.

Sink Twice is designed to function best with Universal valves (i.e. Fluidmaster, Korky and common ball and valve combinations). FluidMaster 400A is best if you need a valve. Sink Twice is compatible with gravity fed (not jet fed or tankless) toilets. For new projects, the best for all-around performance and compatibility are the Gerber 1.28 GPF or Delta 1.28 GPF toilets. If you have a 1.6 GPF toilet, please buy our (BRAND NEW) "Sink Again" model instead which best fits toilet tanks 17" -19.5" (measured with the lid off). For large rectangular tanks, you have two options - for rectangular tanks measuring 18" - 20" (measured with the lid off), please buy the "Sink Bigger" model. For tanks measuring 19.5" - 21" (measured with lid off) please buy this model WITH our expander kit sold separately.

We pride ourselves in quality, efficiency, and customer service. We are a 100% family-owned Colorado company. Please contact seller with any questions.