Name of Work:- MTPS-I – BM – DM plant – Overhaul of Contact tank 2 Nos. and pressure sand filter bed 4 Nos. in DM Plant Stage I.
Sl. No.
Item Description
1
Overhaul of contact tank Charges for top side man hole door opening, dismantling of inlet and outlet headers, cleaning the headers & refixing the same after painting works and closing the manhole doors.
2
Charges for painting the inside of contact tank, inlet & outlet headers with two coats of First quality Epoxy coal tar (high build) with hardner.
3
Overhaul of Pressure sand filter Charges for opening the manhole, dismantling the inlet distribution system, checking the Laterals & to renew if necessary and thorough cleaning of the pipes.
4
Charges for removal of filter media, pebbles and segregation of removed filter media and cleaning the pebbles.
5
Charges for cleaning the tank inside thoroughly, water washing and removal of any debris inside the tank and preparing the surface for painting.
6
Charges for painting the inside of contact tank, inlet & outlet headers with two coats of First quality Epoxy coal tar (high build) with hardner.
7
Charges for re-fitting the collection and distribution headers and their pipes and refilling the filter media to the required level closing the manhole doors.
8
Charges for Sewing sand approximately 32.48m3 to the required size of 0.35mm – 0.5mm from the 8 Nos. Pressure Sand Filter and including supply of normal sand 8m3 for topping up.
9
Charges for fabrication of bends of contact tanks and FPS including cutting grinding and welding as per the field requirement.
10
Epoxy coal tar paint
11
Epoxy Thinner
12
Sand cost
13
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