Thread: Help Needed with Water Pump Advice

Originally Posted by kiwijames

You need the pump curve. Some are designed for pressure (lift), others are rated for flow. Some can do both. HP rating is not enough to work on. That said, 6m lift is bugger all. There may be more head lost in the lines. What size line are you using. 2" is pretty large if you're filling just a tank. 30m3/hr is 8l/s. That's a slab of beer every second.

A very quick look also has a 2" steel pipe giving 1.8m of head via frictional losses at 3.5m/s for 30m3/hr. This maybe an ask for the pump if you have it trying to suck up the hill as most need +ve NPSH to function correctly. This does not allow for any valves or a check in the line which you will most probably need to keep it primed. If you can leave the pump at the creek it would be easier.