A retired plumber taught me this trick with a plastic bottle that almost nobody knows about.

 

The trick explained: simple, but brilliant

The secret is to turn a plastic bottle into a small multipurpose strainer/filter, ideal for household tasks where we usually improvise poorly or make too much of a mess.

🛠️ Materials

A plastic bottle (water or soda)
A hot object or awl (nail, thin screwdriver, soldering iron)
Scissors or utility knife
The original bottle cap
🧪 Step by step

Cut off the top of the bottle (funnel shape).
Make small holes on the sides, evenly spaced.
Replace the lid.
Adjust the edges well to avoid cuts.
Okay. There’s no mystery… but there is a use for it.

💡 What is it really for?

This is where the trick turns into pure gold 👇

🚰 Fast liquid filtration

Ideal for straining water with residue, solid debris, sand, rust or small particles when cleaning pipes, siphons or containers.

🧽 Zero-waste household cleaning

It allows you to recover useful liquids (water with detergent, degreasers, homemade mixtures) without losing solids that you then need to dispose of separately.

🛠️ Emergency solution

When you don’t have a strainer, funnel or filter handy… this saves you.

🌱 Use in gardening

It is used to filter liquid mixtures, homemade fertilizers or organic waste without clogging nozzles.

🤔 Why does almost nobody know about him?

Because it doesn’t sell, it doesn’t need brands or expensive tools. It’s trade knowledge, the kind that’s passed from person to person, not from manual to manual.

Veteran professionals know one key thing:

The simpler a solution, the less noise it makes… but the more useful it is.

♻️ A detail that many overlook

This trick reduces waste, reuses plastic, and prevents you from buying items that you’ll use twice and then forget in a drawer.

In times where everything is quickly discarded, these types of solutions are more valuable than ever.

🧠 Conclusion: practical wisdom that never expires

Not all great tricks come from laboratories or factories. Some are born in workshops, kitchens, patios… and in the experience of those who have seen it all.

This little invention made with a plastic bottle is proof of that: simple, cheap, useful and surprisingly effective.