Making soap using banana tree ashes and animal fat

Hot water boilers and buffer tanks never come with enough insulation. The result is a needless increase in the consumption of electricity, fuel, gas. Here is a really simple solution which will save you tons of money. In fact, it pays for itself in less than a year.

Make a fire extinguisher for type A and B fires.

With this bottle cutter it possible to make a plastic rope from plastic bottles. It is simple to make and can be carried everywhere.

The objective is to make a manual pump to draw water from a tank for exemple.

Build an economical and transportable wood cooking system.

How to preserve fruits and vegetables without electricity.

A simple solution that allows you to bring light into a dark space during the day, without electricity.