I am doing a little DIY project where I need to pump 4-5 gallons of water that is less than 100'. I need the pump to be able to run dry as it starts to pull the water, then it would pump the water.
Does this need to be a potable pump? Non-potable pumps are much cheaper and I will only be running the pump like twice a month for 20 minutes at a time.
Potable example: http://www.attwoodmarine.com/store/product/Potable-Water-Pump
non-potable example, a little pond pump from Home Depot.
With it being hard plastic, I just can't see how it could have an issue. The water does need to be drinkable..