Fertigation systems

I use Inject-o-meter and Neptune pumps. The Inject-o-meter pumps are considerably cheaper than the Neptune. Both are great pumps if taken care of correctly in the off season. The Inject-o-meter can be purchased directly from Inject-o-meter Mfg. I purchased the Neptune, used, from a neighbor. Otherwise the Neptune had to be purchased from my local irrigation dealer. You should get a injection check valve for each pivot. They insure even flow of fertilizer into the flow of water.