I bought both this and the foaming soap dispenser. This stopped working after only a week. After troubleshooting, I realized the battery compartment has been soaked in soapy water and the metals had been eroded. The material felt like cheap plastic so there must be a gap somewhere and the water slowly leaked. The design also didn't make sense to me -- the battery in this sits at the bottom whereas the foaming dispenser's battery sits at the top. For a gadget that contains water and is placed close to the sink it doesn't seem like a good design decision.