Controlling the flow from a solar pump

[Wet Spaniel]

After a couple of sparging hiccups with a gravity fed HLT I’ve decided to lower the HLT and use a pump. Is it possible to control the water flow from a 12v solar type pump with a ball valve?

[clarets7]

If it's the small tan one that is used for irrigation then yes, that is the recommended way to control flow.

[FUBAR]

I power mine with a tattoo gun power supply , you can to a certain extent slow the flow with that . If you could get it at a slow enough flow for your particular set up is another matter .
Mine these days is just used to pump liquor from my HLT to the GF , not used my 3V system for about 6 years .

[PeeBee]

It works for any "open" impeller type pump (be it magnetically coupled, recommended, or direct drive). If you've a "closed" impeller, you'll know about it (they're much more expensive, always direct drive, and continue pumping if the outlet is restricted until something gives in). Control the outflow from the pump, not the inflow or it won't work very well (if at all).

Increasing the restriction on the outflow has exactly the same effect as increasing the height you are pumping to.

[Good Ed]

Just get a ac/dc adapter that has a variable dc setting and this way you can control the speed of the pump and the flow. I got one years ago from Asda.

[Wet Spaniel]

Thanks for the responses all. I’ve got one on order now -cheers!