Calculating volume - On demand sparing

[gnarles]

So how do people who use an RIMs tube as an on demand supply of hot water to sparge with calculate how much water they are sparging with?

Do they just calculate the flow rate and time it?

 

[gnarles]

Do they make something that measures liquid as it is being pumped through it. Similar to a gas meter?

 

[Stealthcruiser]

Yes, they do, called a "flowmeter".

http://www.mcmaster.com/#flow-rate-meters/=xgr27n

One of many sources.

 

[ReverseMonk]

You just sparge until you hit your total pre-boil volume. No need to measure the sparge water as its flowing...

 

[Bobby_M]

Exactly. If you want to cut losses a bit, you can watch your preboil volume and stop sparging when you have about 2 gallons left to collect. That won't run your tun dry but you'll save a little power and water.