I know a person that build a stable and the manurer truck is inside the barn( in a seperted area), were the wagon is the area is leveal with the floor of the barn. now the question- he is going to get a lifter that pick up garbage can on wheel to dump in the wagon ?? has anybody heared of this( I have not)

From an infection control standpoint this is a horrible thing to do...keep animal waste inside longer than needed.  His fly problem will shoot through the roof, mark my words.  Once one animal gets sick he's increasing the likelihood of all of them becoming exposed.  Flies on sick horse poop, fly back to healthy horse and bite.  If he is doing this and dumping it every day and cleaning the waste completely(washing with disinfectant) from the "dump bins" then this can work but if he's going to allow waste to accumulate for days and then dump(imagine lots of rainy days) he'll have increased vet bills.  Not to mention the ammonia given off by rotting urine soaked shavings, talk about a respiratory nightmare!

Are you saying her is going to let the wagon sit there until its full then dump it? If so- I don't see a problem. there are lots of ways to spread an infection. You could do everything by the book and still get sick horses. I wouldn't get worked up over it.

Its not unusal for horse manure to be collected in a truck or a holding pit until its ready to be dumped. Sometimes its spread on a field, composted or just piled up until it can be removed. Our cow manure is pushed into a pit then hauled out when its full. Our horse manure is also piled until it can be hauled. Just wondering how that can lead to infection....