Simply enter the relevant product data for the properties sanitaryware and appliances then calculator will do the rest. The total water consumption per person/ per day, is calculated using the Building Regulation Part G methods, from entering the below information;

• WC flushing volumes
• Tap flow rates
• Bath capacities
• Shower flow rates
• Sink tap flow rates
• Washing machine/ dishwasher/ waste disposal units and water softener information

There is no need for carrying out complex calculations, all required values are calculated automatically! 

Instructions and general guidance is included

The water efficiency calculator spreadsheet includes detailed instructions for use and general advice. Various tables for calculating situations with multiple types of each sanitaryware items are included. The calculator also includes all calculations required for rainwater and greywater harvesting systems. Simply click on the relevant tab at the bottom of the page to display the different sheets which all contain helpful guidance.

Download the free version now to experience the easy to use calculation tables.