MOTM

The Old Crow wrote:

> 
>   Solder-fill all the vias (pass-though holes) with the "no-clean" solder.  
> Don't use the washable flux solder for this.
> 
>   Vias are such a freaking nightmare; they are the cause of more
> motherboard failures than anything else.  Board makers that allow the 
> soldermask to flow over over unsoldered vias are just asking for trouble.

Can you explain what I have to do to make the correct procedure? 
Sometimes I fill with too much solder, and I feel a bump, but I wonder 
if I should remove the solder and refill,
thanks
Luca