Aqualisa developed the Quartz shower valve over 3 years at a cost of €5.8 million. Sales of the Quartz were disappointing at 15 units per day, far below the target of 100-200 units. The CEO believed the Quartz could become a mainstream product, while other managers thought it was only a niche product. A recommendation was made to target plumbers to increase sales, as plumbers influence 73% of shower purchases and the Quartz only requires half a day to install compared to 2-3 days for standard showers. Offering apprenticeships and refunding plumbers for faulty units was proposed to appeal to plumbers. Reducing prices and targeting trade shops, showrooms, and developers was