I was was wondering how to calculate the head flow rate from a water pump. The water pump outputs 2 bar, which means that it will push water up to 20m in height. It also has a throughput of 2000 litres per hour.I want to pump water up to my loft, which is approx 15m above the pump.What will the flow rate be at this height? Is it a linear calculation of percentage of drop from maximum head height multiplied by the flow rate, (eg 5/20 * 2000 = 500 litres per hour?), or is it more complicated than that?
If your pump has more capacity than you need, you can always restrict the discharge and create extra artificial head.
