My sink tap is coming loose. When you turn on the right side, you would tend to push it inward. Straightening it by pulling it back will not make it tighter.

After a few rounds the whole tap will soon be wobbly.

Even the plumber failed to tighten it permanently.

The best way then is to find something of exact width to block the rotation when turning on the the tap.

A brick was too wide. A cardboard box when wet becomes soggy. Nothing seems to work till I got Michael to 3D print something of exact measurement.

Thus you’ll see the 2 black boxes, custom made to the width and measurements, water resistent, reprintable, can change color if I wanted.

And so, hallelujah! The loose sink tap lives another day.