My 3 pigs have totally denuded their pen of vegetation - as I expected they would - and it is not draining well. Anyone have any experience with remedies for this? Like, would dumping a load of sand help, or spreading straw? We aren't even into the rainy season yet but from just a few downpours, we've got standing puddles and a lot of muck. Their penned area is about 25' x 35'. I'm thinking later I'll plant mangels or other such hog fodder after this batch of porkers is off to the butchers.