Mario Garzanelli points to his knee.
Four surgeries. He can't remember exactly how many times he's his knees drained. Then there's the bad hip.
The neck that's been damaged through repeated little traumas.
It's all from years of installing carpets and use of the carpet-stretching knee-kicker - its name pretty much summarizes the technique for its use - whose technology hasn't changed for at least 150 years.
Garzanelli wants to save the next generation of carpet installers the pain that drives many of them out of the business by the time they are in their 40s.
Working from a modest …