In older toilets hinged toilet cover with noise hits the pipe spillway, and the two contact surfaces in this place over time, injured. This can be avoided if reinforced pipe is a foam belt. N. KOZIAKOV, Voronezh
Recommend to read
AND AGAIN THE MOTOR
To drive in many modern pneumatic machines and tools required compressed air pressure of 3-4 ATM. Is it possible to build a mechanism which effectively would have used a pressure...
CENTRIFUGAL JANITOR
When the problem occurs clean from rust or scale, of small-diameter pipes, the question naturally arises — how can this be done? We advise you to make a simple centrifugal purifier....
