LittleBill21
Elite Member
every pump i looked at will do over 20 feet of head, even cheap electric sump pumps, the 1" HF pump does 65 feet, it should work just fine
I found a 12 volt pump that pumps around 300 GPH, produced 40 psi and draws 10 amps. That seems practical with only one battery and a $100 solar panel. It’s 120 Watts not 1200.Amps * Volts = Watts
So a 10@ automotive voltage pump is going to be around 1,200 watts.
Not viable off a solar panel at all. You are looking at $1 per watt for solar power. $40 for a charge controller.
Most batteries are going to be rated for amp hours. That just means it will produce 1 amp for that many hours or that number of amps for one hour (in theory, generally as pacaty decreases as the drain goes up).
A car battery sized deep cycle battery might be rated for 100ah. But if you draw a battery down it will start to get damaged. Generally you dont want to drain a car battery below 70%, or a deep cycle below 50%. You could mitigate that with some electronics to only run the pump until the battery is slightly discharged then let it charge back up.
I'm not sure what the lower bounds for amp draw on a pump would be that can reasonably pump the heights you need at a flow rate that could fill the tower in several days.
RV pumps are generally a couple gpm & pushing 10@. So a couple hours to fill an IBC tote.
I'm sure solar can get the job done, but won't be super cheap & easy. And unless you throw a lot of $$$ at it it's going to be slow (which may or may not be an issue if you have days to fill).
Go up to the HF 2" pump at $199.
I have one and it works great.

If her use does not require the pressure available by your nice tower I'd rethink.I guess I wasn't very clear on this project. For very valid reasons, there is no power or water at the wife's garden spot. I have to haul water on the tractor (from the well near the homestead) and the new water tower means I can fill it fast and be on my way.
Previously I had two 55 gallon barrels extended high on the loader/pallet and had to wait for it to siphon out with her hand watering. Trying to schedule that for a 2-beer afternoon break wasn't meeting her expectations.
~Bob
Have you considered the simplest idea of all and just catching the rain off the roof? I致e got about 500-700 square feet of roof draining into a 2500 gallon tank and one hard rain will fill it.