Winter's here and the well is not producing.

Merry Christmas All,
A little background first.  We have a shallow well pump, 4 cows, a pig, chickens, ducks, etc.  We use about 50 gallons a day on average.  Like the title infers our pump is not producing from my research it may be a bad foot valve ( we ran the pump way too long trying back flush sediment from the filter).     I want to wait till spring to remove the foot valve and I don't to pay a pro to do it.  I tried using a pond pump to fill the pressure tank.  I was able  to get water to come out far bathroom sink but didn't see a rise in the gauge on the pressure tank.  It may be because I didn't give it enough time or that it is not powerful enough the handle the situation.  
My thought is to try a sump pump but wanted to see if I am on the right track.


TIA

We're talking shallow well as in dug, so you're able to drop other sorts of pumps or pipes into it? Or is it a drilled shallow well?

What sort of pump/piping is the current solution?

I would not expect a smallish pond pump to have much luck with the pressure tank. Pond pumps are sometimes oil filled, so a bit of a risk to have it in a potable water supply if so..


I would be looking for a used well pump(jet type, assuming shallow well is dug and under ~20ft) on craigslist. I see them come up for 50-250 pretty regularly in my rural area. Add new pipe/foot valve, and a valved T and you've got redundant pumps once you fix the old setup...

There are also nice diaphragm pumps that run on 12V. (DAYPOWER WP-165 being one example).

Flow rate at no pressure: 6L/min (1.5 gal/min)
Flow at 4bar (58psi): 4L/min (1 gal/min)
Max pressure: 5bar (72psi)

They can pump anything that does not dissolve the housing or diaphragm and do not contaminate the water with oil.