DIY jak zgrzać folię na tunel i tania zgrzewarka własnej roboty

When your polytunnel is falling apart, meaning when the foil has deteriorated and there's no point in installing it, you need to consider a new one. Instead of buying a new, checkered one, which might fall apart after a year anyway, it's better to buy a sufficient amount of good-quality foil by the meter, weld the edges under the tension of the string, and install it for a few years. Buying custom-made foil with welded edges is significantly more expensive, and hemming or gluing with adhesives is time-consuming and inefficient. So, here's a video on how to build a foil sealer at a low cost and how to easily weld foil to avoid significant shrinkage during welding.