How To remove the default selected filters in Purchase Order

Hello Team,

In the Buying, Purchase order, Top filter boxes, some boxes donot have the water mark. They have only tooltip text. So user might not know, what is this field for unless he moves the mouse on to the Box. To make it consistant, we need to provide the water mark help text in all filter boxes.!

Filters are automatically adding in all listing screens. Which is very confusing to the user. We have clear the filters and user can apply by himself.