Float Switch

[eccsynd]

Here's an interesting switch: http://www.fluidswitch.com/pages/fh0708.htm

They also come in SS, but those are pretty expensive. I like this style because you can use 2 switches for hysteresis and not worry about submerging the lower one. They install through the sidewall, so all of the wiring is external.

Might pose a cleaning hassle though.

[Alemental]

is it possible to use the float switch with a asco type valve to control wort flow? I would like to use it with my hop back, the level of my hop back is below my boil pot so the wort bleeds back from the pump and turning off the pump will not work.

Sure Igor,
It is perfectly possible to do it this way. There is little difference between switching a pump or switching an ASCO valve. It only assumes that you have a gravity flow setup. In fact, I have the parts to do exactly this, but just have not yet put it together.

[Mylo]

Seriously? You can use ASCO valves inline with the wort? What if a few grain husks made it through the false bottom. Would the design of the valve not allow the valve to be stuck open? I would have thought that you need the (much more expensive) motorized gate valves - like those on automated pool equipment.


Mylo

[Alemental]

You make a good point Mylo. Some grain could get stuck. A larger ASCO valve would certainly help there.
Actually, the best place for the ASCO would be to control the flow of the sparge water.