Randy,
My tanks are connected to about 1100-1200' of poly pipe laid through the woods. It runs down to distributors for soaker hoses on each row of the veggie garden and to old hoses to water fruit trees/shrubs. The old hoses to the trees/shrubs just have a 1/8" hole drilled in the hose at the location of each tree/shrub. I've turn-off valves to each row of 3 trees/shrubs.
In the veggie garden, there are turn-off valves to each soaker hose, too. About half of the soakers do 2 rows each. These hoses get plugged up. Every year, I poke new holes where I put seed, with an ice pick.
On each tank, there's a mechanical timer. I'll twirl it on for about 90 minutes of watering. In the past, I was forgetting to turn off the water and would run the tank dry. Each 90 minutes uses about 100 gallons through the soakers. Seems to use a little bit more to a couple lines supplying 6 trees/shrubs.
My little 12v pump does a really good job of supplying water, left on for about 3 hours. It was bought at TSC a few years ago. Pumps 1 to 5 gpm, depending on head. It'll even pump uphill the 100' to my rain tanks, but it's down to about 1 gpm to buck that 43 psi head. After 3 hours, I switch that battery to the one on my electric fence to allow it to recharge off the solar panel. It still has enough juice to run the electric fence.
Ralph