DRAINAGE IN THERMAL AREA
VARYING GROUND TEMPERATURES (PKIS9 ASSOCIATION TBLIGBAV.) ROTORUA, November 21. The Rotorua Borough Council has just completed an unusual drainage scheme in the sewerage reticulation of the thermal area at Whakarewarewa pa. The scheme necessitated the laying of more than 1700 feet of mains in ground varying in temperature from 130 to 212 degrees. In many cases large fissures were erounT h^'T at K the -su,rfaceground had to be reinforced with special acid resisting concrete. Serious injury to workmen was narrowly averted on one occasion when a bank on which two men were workus blown out by steam. Neither man, however, was hurt £?£ aS s co 0 s r le ' c,i " les! ,hto
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Press, Volume LXIX, Issue 21019, 22 November 1933, Page 14
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116DRAINAGE IN THERMAL AREA Press, Volume LXIX, Issue 21019, 22 November 1933, Page 14
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