
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
VENTILATION IN THE GARAGE
The garage, which was built in the time of my neighbors, so appealed to me that his project was taking advantage of me. Considering his opportunities, the need for ventilation and...
HOMEMADE FORGE
due to numerous requests of our readers interested in the publications under this title (see No. 8, 1977, No. 5, 1978), put some more descriptions of decorative designs, metal and wood...