DIG Irrigation Products drip and micro sprinkler system (not a sponsor, just love their stuff.) DIG has created an awesome FREE Drip Irrigation Installation Guide which guided us through what to buy and how to put it together
we never mound our potatoes until they begin to bush. We always plant by Valentines day and we make sure to water often in those first few weeks. We do save and grow our own seed potatoes year to year so we do not have to buy those that are chemically treated to plant each year.