Five jetting-cum-suction machines, 12 jet rodding machines and five desilting machines were flagged off by Municipal Administration Minister K P Munusamy on Monday.

A Metro Water spokesman said that jetting-cum suction-machines worth `1.94 crore, jet rodding machines worth `4.35 crore and desilting machines at a cost of `0.46 crore would help maintain the sewerage network in Tondiarpet,  Royapuram, Thiru.Vi.Ka.Nagar, Ambattur, Anna Nagar, Teynampet Kodambakkam and Adyar areas. This comes after the CM ordered purchase of jet rodding machines, desilting machines and super sucker machines under the Chennai Mega City Development Mission. So far, 55 desilting  machines at a cost of `3 crore, 39 jet rodding  machines worth `14.02 crore  and 13 jetting-cum-suction machines at a cost of ` 4.96 crore  have been  put to use.