Has anyone used an Ezi-Action drum pump for getting liquid chlorine out of a 5 gallon (in my case 20 litre) drum?
An overview of it can be found at http://www.nzpump.com/Blog_pumping_chlorine. Also http://www.nzpump.com/eziaction_drum_pumps
You can also get a container that attaches to the nozzle for measuring the amount pumped out. http://www.nzpump.com/eziaction_safety_measures
Sold in the US as well as New Zealand by the looks.