COMPREHENSIVE MAINTENANCE OF SWIMMING POOL INCLUDING SUPPLY OF CHEMICAL, CLEANING OF POOL TANK, DEVELOPMENT OF BORE WELLS AND ALLIED WORKS AT AFS UNDER GE (AF) JORHAT

M&L for cleaning and sterilization of inside the RCC tiles covered underground open type swimming pool (including areation tower) of сарасitу 800000 litre of size (25x12.5x25m) by decanting with water pressure jet machine, scrapping internal surfaces and bottom of the tank with mild steel scrubbers/brush, rubbing down scale, dirt, sludge, etc., washing with clean water taking out and removing mud, dirts, silts, sand, iron deposits/sludge, etc. from inside the tank and depositing at a distance not exc. 50m away from the tank, washing inner surface with using Hydrochloric acid (HCL), lime, bleaching powder, etc., as per site requirement and removing the same untill clean surface is obtained including cutting of bushes, plants, etc., cleaning of drains, surrounding area upto 3.0m and following steps to be followed for cleaning of swimming pool complete all as specified and as directed:-

(a) First Step is to drain out the water by using exit valve or high capacity dewatering system. (b) Second Step is cleaning all the algae formation inside the tank by using Hydrochloric acid (HCL) and scrubbing the walls of the tanks (c) Third Step is fresh water cleaning by high speed jet pump and clear the surface as required. (d) Fourth Step applying bleaching powder/altoch to remove bacteria. (e) Fifth Step is cleaning the floor of water tank by industrial vaccum cleaner. (f) Sixth step is applying lime and wash the surface by high speed jet pump. (g) Seventh step of cleaning the complete swimming pool by applying altoch and remove the same with high speed jet pump and vaccum cleaner.

All as per Serial item No. 1 here-in before including Notes but RCC balancing TANK of capacity 30000 GALLON, Open Type located at swimming pool.

Taking down and dismantling carefully centrifugal motor of 10/15 capacity and taking out the burnt/worn out coils from the slots of stator and other accessories such as ball bearing, rotor, cleaning the stator slots and changing the defective items and rewinding the same with new supper enamelled copper winding with appropriate gauge, heating varnishing with doctor beck's insulating varnish and re-assembling the same and testing and comissioning complete all as specified and as directed.

Comprehensive maintenance of air compressor assembly by cleaning and painting the whole body including air tank, oiling, greasing, tightening of all nuts, bolts if required with minor repairing to compressor pump and electric motor including replacement of spare parts like V belt/NRVs of any size pulley if required of any type, etc. including replacement of old oil SAE-90 and other spares complete all as specified and as directed

Supply and fix thermal overload relays, type MN2, suitable for MNX 24-40 Amps including taking out unserviceable burnt relay, s complete all as specified and as directed.

Supply and fix 3 pole power contactors confirming to IS/IEC 60947-4-1 & IEC 60947-4-1, type MNX 32, AC-3 rating 32 Amps and AC-1 rating 55 Amps including taking out unserviceable/burnt contactor with electrical connection, complete all as as specified and as directed.

S&F cast iron sluice valve of class PN-1.6 with flanged ends 100mm nominal bore, ISI marked complete with stainless steel spindle and cast iron cap including rubber/fiber board gasket, nuts, washers, etc. including taking down old unserviceable sulice valves complete all as specified and as directed.

S&F cast iron non retum valve (NRV) PN-1.6 with flanged ends 150mm nominal bore, ISI marked complete with cast iron cap including ruber/fiber board gasket, nuts, washers, etc. including taking down old unserviceable one complete all as specified and as directed.

S&F butterfly valve 150mm nominal bore, ISI marked complete including rubber/fiber board gasket, nuts, washers etc. including taking down old unserviceable butterfly valves complete all as specified and as directed.