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coarse salt, 150 g
baking soda , 100 g
white vinegar, 100ml
boiling water, 500 ml.
All ingredients must be added one at a time, you will not have to mix them.
In a saucepan, heat the water and bring it to the boil, then turn off the gas and set aside. Remove the pop-up and fill the well completely with coarse salt. Wait for it to settle along the pipes, then add all the bicarbonate.
Use a spoon to check that it is evenly distributed over the salt . Both should still be visible and sticking out of the well. Now pour in the white vinegar , a powerful chemical reaction will take place , producing an effervescent foam . Let it evaporate completely, then add the water which will now be only hot, not boiling to avoid thermal shock in the joints. Wait for it to penetrate the pipes, dissolving the salt, which in turn will capture the dirt and remove it permanently. If the first attempt does not completely clean the sink, repeat the operation until it is completely free… And breathe a long sigh of relief! It ALWAYS works! Guaranteed!
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