Another popular option for pumps would be little giant. A little more money, but much more powerful, easier to prime, and quieter than march 809's or chugger pumps. They can also be found used a little more readily.
Originally Posted by thedude00
if you are using a HERMS system you need two for sure.
How so? A second pump would be nice, but my HERMS works just fine with a single pump.