a stall?? Once daily...
You clean your horses box every day if possible.
It depends on your horse's urine and bowel movement pattern. You must check it's box at least every other day to know when to clean it.
You should clean a horses stall every day to insure a healthy horse.
A horses stall should be cleaned every day.
You should remove all the droppings and obviously wet bedding twice every day, and completely change the bedding at least once a week.
You should Clean your Sony boom box with your memorex opti disc cleaner at least once or twice a week.
If there is mold on your cat's feces when you clean the litter box, you should try cleaning the box more frequently. This sometimes happens when the box is not cleaned often enough.
A horses stall should be cleaned every day. A horse can get a foot illness called thrush. Standing in a wet stall can cause this.
It depends how often they are stalled, but it should be cleaned at least once a day, twice or more if needed.
== == every day howrse.com answer: Daily
You should ALWAYS be careful with horses.
The size necessary to transport two horses is dependent on the size of the horses. Generally, such a box should be big enough for the horses to be able to take one step in each direction. Additionally, the height should be at least 75 cm above the shoulder blades.