My first drop tubes used caps. They work fine but are difficult to solder because you have to put the caps on after the tubes are dropped in if you flange the tubes.

Adding the tubes easily tripled the evaporation rate of my steam table pan.

Cleaning is easy: Coat hanger wire, tuft of scotchbrite, cordless drill. Rinse well.


When soldering copper to stainless, use good liquid flux and a very low flame. Tin each side first.

Have fun!