We have some fields about 10 miles from home , we have about 100 ewes plus lambs and 20 store cattle on the ground but we have trouble with the mains water supply the pressure is very poor , it only trickles into the troughs and during this hot spell it has been virtually non existant , what are your thoughts / ideas , there is a farm yard to the fields which the water comes from and the pressure is pretty good in the yard could the pipes in the fields be firred up , also you can hear air coming out of the ball valves . Any suggestions .