There is a balance, too heavy and you can't move it by hand but too light and you need to refill it too often and the
cattle push it around/over. I could probably scrap something together for a couple cows using an old garden wagon, but you need too much mineral to be man moveable for more animals than that.
And there is no great answer for wet conditions other than move it daily or invest in a load of rock to make a raised pad for it near the
water.
I use the standard free choice enterprises skid feeder with rubber flap lid. It is heavy before you fill it, plus it will hold 800 lbs of mineral.
I want to build an all-in-one trailer. IBC tote for water (and weight to keep it from blowing away in the wind) with multiple waterers to reduce fighting,
solar fencer and rotational
fence storage, mineral feeder and bulk storage, and a big fold out shade structure. It would need a
tractor or pickup to move it, but if you pie slice your paddocks from it, you
should only have to move it once a week or less. The tote would have a float valve so you can slow fill it from a permanent or temporary line through the pasture that could be run daytime only from a small
solar pump dropped in a nearby
pond.
"You must be the change you want to see in the world." "First they ignore you, then they laugh at you, then they fight you, then you win." --Mahatma Gandhi
"Preach the Gospel always, and if necessary, use words." --Francis of Assisi.
"Family farms work when the whole family works the farm." -- Adam Klaus