Weepholes are the gaps left between some bricks in external masonry walls. They serve two important purposes: Ventilation of the internal wall cavity - Without ventilation, mildew, dry rot and damp reduce the life of the internal wall studs and other building materials within the cavity.
Keeping this in consideration, what is the purpose of a weep hole in a water pump?
These seals are a normal part of the wear process in a water pump. Due to this, the manufacturer has drilled a hole known as the “weep hole”. If we see engine coolant leaking or "weeping" from your water pump, then it is time to replace it!
What is a weep system?
A weeping tile (also called a drain tile or perimeter tile) is a porous pipe used for underground water collection or discharge. Weeping tiles are often used for water drainage near basement foundations as a part of basement waterproofing, where they are called a French drain.
What are the holes in bricks for?
And as brick have an incredibly high compressive strength (compared to the mortar that holds them together and even most common mixes of concrete), the holes don't really detract from their structural value. Holes in the brick are provided so they dry or heat evenly during the drying and firing processes.