A chimney liner guards a masonry chimney by forming a barrier amongst the construction in the chimney and the new, corrosive exhaust it carries to the skin.By containing superior temperatures and protecting against heat from coming into direct connection with combustible elements, liners lessen the chance of fire and structural injury along with pr

When two sewers join as well as level distinction between invert of branch sewer and water line in the primary sewer at maximum discharge is much more than 0.six meter, a drop manhole is constructed.In practice, industry experts usually make reference to the pipe invert level as the ground level. Its counterpart, the obvert, refers to the ceiling l