A gravity feed can work very well. And, there is very little to go wrong. However, the pressure is low. So, to increase flow, the diameter of the pipe must be increased.
Or do it like me, I'm cheap, so I use skinny pipe/hose and flow it into a stock tank in the garden for watering. A float valve keeps the stock tank from overflowing. I find that I can move a lot of water by hand, way faster than a garden hose, as long as it's central to the garden. (I put a little raft or a long pole in the stock tank, so birds and bees
can get a drink without drowning.)