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First step. The first thing to do is turn off both the water and the gas. The boiler must be completely turned off. Connect a hose to the water outlet, with the help of a pump, you will remove and introduce a special mixture.
Attention: there are substances on the market that remove limescale. If you want to do internal cleaning of the pipes, you need to contact a specialized technician.
Third step. You can clean the exterior of the boiler and the pipes using a cloth moistened with vinegar, rubbing vigorously to remove stubborn stains.
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