The use of OKA Concrete Porous Pipe
is undoubtedly a great advantage both in
efficiency and economy. Its strength is much greater than the ordinary clay
subsoil
pipe, and INCREASES WITH AGE , as it remains unaffected by the absorption of
moisture or by the variations in climatic conditions.The saving in trenching , and the
rapidity of laying more than compensate for
higher cost of the pipes , and when the certainty of
correct operations at little
or no extra cost for maintenance is taken into account, the
superiority of Porous
Concrete Pipes for Land Drainage is uncontestable.
The unique property of Porous Concrete
Pipes is that infiltration of water takes
place over the entire surface so that ,
in fact , the pipe - line enjoys the best
characteristics of the rubble drain with the additional
advantage of a central duct
for the rapid removal of water. The
porosity is so remarkable that small drains
may be connected to larger ones merely by placing the end of
the former over the
latter without the need for piercing the wall of the main to
enable it to receive the
flow from the subsidiary. |
