REPAIRS / MAINTENANCE OF STP AND OTHER CONNECTED MISC WORK AT INS SATVAHANA, INS VIRBAHU, NAVAL PARK, NAUSENA BAGH WITH CERTAIN WATER SUPPLY WORKS UNDER GE (UTILITY-II) VISAKHAPATNAM

Maintenance of ETS Satvahana swimming pool (Type 'D' ) of size 30 m x 10 m, without a separate diving pool, the water depth is 1 m at shallow end increasing to 4 m at deep end by following steps, complete all as specified and as directed by Engineer-in-Charge:- (a) Cleaning the surfaces by scraping and using chemicals such as bleaching (b) Cleaning of swimming pool side walls. (c) skimmer channel by pool cleaner and cleaning of bottom including deep slope surface by under water cleaner (d) Removing sediment particle from bottom by using suction sweeper by deploying required number of manpower who are well conversant with swimming pool cleaning process and specialized in diving and deep cleaning, without disturbing the swimming pool schedule of operation.

(Item No 01---Contd) Note :- The quoted rate shall be inclusive of the followings :- (a) T & P such as oxygen mask, air compressor, oxygen cylinder, safety rope, brush, wire mesh and all accessories required for under water cleaning of slope area at deep end including diving persons life insurance and any emergencies etc. (b) Cleaning of swimming pool should be carried out minimum once in a week and as and when ordered / directed by Engineer-in-charge / GE as per site requirement by deploying required manpower but not less than three. (c) Cost of cleaning material and chemicals required for cleaning shall be deemed to be included in the quoted rate (d) After every cleaning the follwoing water quality and standard parameters to be checked and confirmed to the Engineer-in-Charge as per TI 03/2010 and cost of testing equipment shall be deemed to be included in quoted rate:- (i) Ph : 7.4 to 7.6 (ii) FRC : 0.5 to 1 PPM (iii) Total Allkanity: 75 ppm minimum (iv) Total Hardness: 200 ppm minnimum (v) TDS: 500 ppm minimmum (e) Testing equipment such as pH meter, Chlorine test kit, Water Alkalinity test meter, Water Hardness test meter and TDS meter should be made available at Swimming Pool.

Supply and installation of chlorine gas supplied in 900/100 kg cylinders for water treatment at Swimming Pool / Water Supply installations under the AOR of GE (U-II), complete all as specified and as directed by Engineer-in-Charge. Note: (i) Testing of cylinders, repair to outlet valves of cylinders, gas control and regulating system should be checked and ensured for leakproof and proper functioning at each replacement of cylinder and the rate is shall deemed to be included for the same. (ii) Chlorine gas will be supplied in 900/100 Kg as ordered and directed by Engineer-in-Charge as per site requirement. (iii) All safety equipment's/Masks should be provided by the contractor during replacement of chlorine gas cylinder and the rate is shall deemed to be included for the same.

Supply only copper sulphate, complete all as specified and as directed by Engineer-in-Charge.

Supply only Alum (Crystal type), complete all as specified and as directed by Engineer-in-Charge.

Supply only calcium hypo chloride of 65%-70% of chlorine, complete all as specified and as directed by Engineer-in-Charge.

Supply only poly aluminium chloride, complete all as specified and as directed by Engineer-in-Charge.

Comprehensive Maintenance of Chloronome plant gravity panel type at ETS , of capacity 0.60 Kgs per hour for chlorin Swimming pool ating the swimming pool water, testing for leakages, rectifying the leakages and attending to required repairs, with and including replacement of spares of Chloronome plant for smooth and efficient functioning without any breakdown, complete all as specified and as directed by Engineer-in-Charge.

Supply and replace spare parts for chloronorm plant gravity feed as per sample including taking down the unserviceable spare parts of the Chloronation plant, complete all as specified and as directed by Engineer-in-Charge:-

Panel connecting copper tube set