In the holes drilled in a wooden tube in the concrete wall, there is always a lot of sand and dust. To remove them will help plastic or metal tube by simply inserting it into the hole and how to blow into it (but mind your eyes!).
S. DOROFEEV, p. vokhtoga, Vologda region.
Recommend to read
STICK-FUNNEL
When you need to pour the liquid in a bottle with a narrow neck, you always use the old reliable and proven method: inserted into the hole daddy or thin wire of a suitable diameter so as...
“EIGHT-EIGHT”
88-mm anti-aircraft gun Flak 18/36. The history of military technology is replete with examples where a particular weapon has become world famous. So, do not need additional introduction...
