Grease trap. Stinky, nasty piece of work that has to be cleaned out every couple months. Here’s ours, dug up and replaced.
It looks perfectly functional, and it is. But since the plans to our house were never brought up to date at the intendencia, it had to be replaced by a bigger “approved” one — 20 liters.
Instead of 18.
20 instead of 18! Bureaucracy gone wild.