Water pump with a freeze plug

From flow koolers website
Does a drip from the weep hole mean seal or pump failure?
Perhaps. Seals will drip as the seal lap in but to understand a more prolonged or intermittent “drip” you have to understand a seal’s design. Seals purposefully drip because capillary action draws fluid from the seal face. As the seal drips, it helps wash loose debris out and reduce the heat load. Most drips evaporate or fall on the road and are not noticed.
Naturally, a more pronounced drip indicates a compromised seal and impending bearing failure.

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