Booster Pump for horse waterer

[JoannaS]

I'm trying to get water from the house to the new horse barn we're building. This water will be connected to automatic waterers in three horse stalls. We have well water for larger items like washing and irrigation. Currently, the hose reaches 400ft up a 20ft hill, but the water pressure isn't great. My question is, what can I use to increase the water pressure just a little more, and does the pump connect directly to the house or somewhere in between? Some of these systems seem like overkill and I'm trying to save some money. Thank you for answering the specifics to my question on a topic covered multiple times.