calciuum reactor help

[Delphinus]

Sorry, missed your second question there.

To measure my effluent rate, I just take a 15ml measuring spoon and count the seconds it takes to fill. I run my reactor at 60ml/min so I expect it to take 15 seconds to fill the spoon - and just adjust accordingly until I get it close (it's pretty fussy work getting it dialed in just right).

You could always get a peristaltic pump but they tend to be pricey. There are those that are fixed-flow for around $80-120 but you can also get adjustable peristaltic pumps but they tend to run in the hundreds to thousands of dollars (depending on how used&abused a model you can find on ebay or whatever).