Hi, I need a liquid pump that can deliver BOTH smooth flow and pulsed flow, I've looked at: Normal liquid pumps Metering pumps peristaltic pumps Liquid respiration pumps Centrifugal blood pumps The latter two provide pulsed flow, but I'm struggling to find a pump that can deliver both continuous (0 - ~800mL/min) AND pulsed flow. So what if I somehow attach a continuous flow pump to a square wave power output? Or have a timer or something that turns it on for say 10 seconds then cuts the power for 2 seconds and then turns the power back on again? I could use a basic liquid pump, but it's likely we will be working with something like this: https://www.coleparmer.co.uk/i/mn/7316033 My question is, would flicking power on and off damage the electronics of the pump? And the plug will just plug straight into the mains, how would I get a square wave to power the pump? Thanks for any advice on this.