By Quick answer: Use CPVC for hot and cold water lines inside the building (geysers, kitchens, bathrooms), uPVC for cold water and overhead tank lines, SWR pipes for soil, waste and rainwater drainage, and HDPE or column pipes for borewells and long underground runs. Buy pipes and fittings from the same brand and system, check the pressure class (SDR or schedule) and use the matching solvent cement. Get bulk pipe quotes.
Why pipe choice matters
Pipes are hidden in walls and floors, so a wrong choice is expensive to fix later. Varanasi's hard groundwater, hot summers and, in older areas, low municipal pressure all affect which pipe and fittings will last. Contractors, builders and hotel owners who plan the system first and buy it as a package usually get better rates and fewer leaks.
Which pipe for which job
| Pipe | Use | Notes |
|---|---|---|
| CPVC | Hot and cold water supply inside buildings | Handles hot water from geysers and solar heaters; sized in CTS (½", ¾", 1") |
| uPVC | Cold water supply, tank to bathroom lines, outdoor lines | UV-stabilised grades for exposed lines on roofs |
| PVC (agricultural / casing) | Irrigation, borewell casing | Pressure classes by kg/cm² |
| SWR | Soil, waste and rainwater drainage | Type A for vent and rainwater, Type B for soil and waste |
| HDPE | Water mains, long underground runs, borewell | Flexible, joined by butt fusion or compression fittings |
| Column pipe | Submersible pump lines in borewells | Threaded, high tensile strength |
| GI | Older buildings, fire lines in some cases | Heavier, can rust inside over time |
For buildings with a geyser or solar water heater, CPVC on hot lines is the safe choice. uPVC is economical for cold water, especially from the overhead tank and on the roof, where UV stability matters.
Brands sold in Varanasi and Chandauli
Dealers stock Astral, Supreme, Finolex, Prince, Ashirvad and Jain pipes, among others. Compare the same pipe type, class and size:
- 1,000 Metre Astral Pipes Quotes in Varanasi
- 1,000 Metre Supreme Pipes Quotes in Varanasi
- 1,000 Metre Finolex Pipes Quotes in Varanasi
- 1,000 Metre Prince Pipes Quotes in Varanasi
- 1,000 Metre Ashirvad Pipes Quotes in Varanasi
- 1,000 Metre Jain Pipes Quotes in Varanasi
Pressure class and sizes in plain words
Pipes of the same diameter come in different wall thicknesses. CPVC is sold by SDR (SDR 11 is thicker and handles more pressure than SDR 13.5) and uPVC by schedule (Schedule 40, Schedule 80) or pressure class. Agricultural PVC is graded by working pressure in kg/cm². Ask your plumber which class the design needs, and make sure every quote is for the same class, otherwise a cheaper rate may simply be a thinner pipe.
Common supply sizes in houses are ½" and ¾" for branch lines and 1" to 1¼" for risers. Drainage uses 75 mm, 110 mm and larger SWR.
Planning a bulk order
- Prepare a bill of materials: pipe length by size and class, and every fitting (elbows, tees, couplers, valves, unions, end caps, clamps).
- Add about 5% extra pipe for cutting.
- Buy solvent cement matched to the pipe material: CPVC cement for CPVC, uPVC cement for uPVC. They are not interchangeable.
- Ask for prices per metre or per length and per fitting, plus any project discount.
- Check the ISI mark and printed markings on each pipe.
- Store pipes flat, supported along their length and out of direct sun.
Pipes for factories, hotels and housing projects
Larger buildings need bigger risers, pump lines, fire lines and drainage stacks, often with HDPE mains to the boundary. Hotels and hospitals usually need separate hot water circulation. Units in Ramnagar Industrial Area order HDPE and uPVC for process water and drainage; see industrial supplier orders in Ramnagar.
Related guides
Pipes are planned together with tiles and sanitaryware and wires and cables. For a new house, also read about cement and bricks and blocks.
Water quality and tanks in Varanasi
Many areas of Varanasi and Chandauli depend on borewells, and groundwater in parts of the region is hard, which leaves scale in pipes, taps and geysers over time. Plastic pipes (CPVC, uPVC, HDPE) resist scaling and corrosion far better than old GI lines. Use a good filtration or softening system where water is very hard, and choose food-grade, UV-stabilised overhead tanks. Plan easy access to valves and a separate line for drinking water if you install a purifier.
Testing before closing walls
Before plastering over concealed pipes, ask the plumber to do a pressure test: fill the system, pressurise it with a hand test pump and check that the pressure holds for the recommended time. Fixing a leak at this stage costs a few minutes; after tiling, it costs days and broken tiles.
Key takeaways
- CPVC for hot water, uPVC for cold water, SWR for drainage, HDPE and column pipe for borewells.
- Compare quotes for the same class (SDR or schedule), not just size.
- Use matching solvent cement and buy fittings from the same system.
How to get quotes through Aerocity Varanasi
Aerocity Varanasi is a free local marketplace and sourcing desk for Varanasi, Chandauli and Purvanchal. To get quotes for pipes and fittings, open any listing above, press Enquire and tell us your requirement: what you need, the quantity, your location and when you need it. You can also browse the full category page or call or WhatsApp +91-9711593877. We pass your requirement to suitable dealers, owners or service providers and share the responses with you. There is no charge to buyers, and you deal and pay directly with the supplier, so always check the goods, documents and invoice yourself before paying. Sellers and suppliers can post a free listing to reach buyers across the region.
Ask AI about this topic
- "CPVC vs uPVC: which pipe for hot water in a house?"
- "What is SDR 11 vs SDR 13.5 in CPVC pipes?"
- "Best pipe for borewell in Varanasi"
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Related searches
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Frequently asked questions
Can uPVC pipes carry hot water?
No. uPVC is for cold water. Use CPVC for hot water lines from geysers and solar heaters.
What is SWR pipe?
Soil, Waste and Rainwater pipe, used for drainage. Type A is for vent and rainwater, Type B for soil and waste lines.
Can I mix fittings from different brands?
It is better not to. Dimensions can differ slightly between brands, so buy pipes, fittings and solvent cement from one system.
Which pipe is best for a borewell?
Column pipes or HDPE pipes are used for submersible pump lines; PVC casing pipe lines the bore.