Here are the negatives of factors such as mechanical failure or when installing the pipe during operation which would lead to the use of heating (it is impossible to repair) .
Hapa ni negatives ya mambo kama vile kushindwa mitambo au wakati wa kufunga bomba wakati wa operesheni ambayo ingeweza kusababisha matumizi ya inapokanzwa (haiwezekani kukarabati) .