The Power-house Supply Pipes.

Te Aroha News, Volume XXII, Issue 42761, 15 August 1905, Page 2

The Power-house Supply Pipes.

Anyone taking a walk along the pipe trench yesterday, from the powerhouse to the reservoir above, woul notice tbat a great number of th water pipes have been ranged, along the side of the trench ready to be rolled in. These pipes are constructed of sections fitted one into the other and secured by rivets.

It is a well-known fact to those versed in hydraulios, and indeed must be obvious to anyone, that if the flow of water is in the direction from B to A the projecting edges of the plates not only retard the flow of water, but are rapidly worn away by the constant attrition of particles of grit, gravel, etc., which are continually being carried down with great force. But, on the other hand, if the flow is in the direction from A to B, anything passing down the pipe, be it water or grit, TrII glide over the joints without inteiruption, Out of 118 pipes laid alongside the trenoh, 57, that is practioally half the number, ihave the joints facing in the wrong direction, and of seven that have actually been laid in the trench ready for bolting together, only one is correctly placed. It is not yet tocHate to remedy this, but it will mean an extya handling of about half the total number of the pipes.