If a shul has shaimos that need to be buried, do they need to dig a new pit each time or can they use an existing pit?
In front of a shul that I saw years ago, they had built a pit, buried some shaimos, covered up most of the pit, but left a small section uncovered. On top of that, they placed a box with a slot. Thus, whenever they want to bury shaimos, they place them in the slot and the shaimos fall into the pit.
Is this technique permitted?