Kirloskar CPBS 73624 V 1 HP Pressure Boosting System

The Kirloskar 1 HP Pressure Boosting System is the most popular variant in Kirloskar's HYPN (Hydro-Pneumatic) pressure boosting range, built for independent houses, bungalows, and duplexes with 2 to 3 bathrooms. If you've searched for "pressure booster pump for bungalow" or "water pressure low on upper floor," this is the variant most homes in that category actually need — it's the size point where Indian homebuyers most often land after comparing options, because it balances enough headroom for daily peak usage (morning rush hour when two bathrooms and the kitchen tap are all in use) without the higher running cost of the 1.5 HP model.

The problem it solves: In most independent homes, the overhead tank is the only source of water pressure, relying purely on gravity and height. As soon as more than one outlet is opened — say, a shower running upstairs while the kitchen tap is downstairs — pressure at both points drops noticeably. This is especially common in homes where the tank isn't very high above the highest outlet, or where the plumbing runs long horizontal distances before reaching a tap. The 1 HP HYPN system corrects this by actively pressurising the line itself, rather than depending on tank height alone.

How the HYPN system works: Kirloskar's Hydro-Pneumatic technology pairs the pump with a small pressure vessel (tank). Water is drawn from your existing overhead tank or sump, pressurised, and pushed into your house plumbing at a steady, pre-set pressure. A built-in pressure switch continuously monitors the line: the moment a tap opens anywhere in the house and pressure drops, the pump kicks in automatically — and it switches off on its own once all taps are closed and pressure is restored. There's no manual operation needed, and because the pressure vessel holds a reserve, very short draws (like a quick hand-wash) often don't even need the motor to cycle on, which reduces wear and saves electricity.

Who should buy the 1 HP variant:

• Independent house or duplex with 2–3 bathrooms
• Homes where upper floors get weak pressure
• Overhead tank on ground/first floor feeding multiple points
• Families who need simultaneous shower + kitchen + washing machine flow
• Anyone replacing an old, noisy, or failing booster pump with a more reliable, branded unit

What actual daily use looks like: With a 1 HP system installed, a typical morning where two bathrooms and the kitchen are all drawing water at once should no longer cause a noticeable pressure drop at any single point. The system is built to maintain the outlet pressure the pump was set to deliver, which is a common pain point that leads people to search for "why does my water pressure drop when two taps are open" — this is precisely the scenario a correctly sized 1 HP unit is meant to fix.

Installation considerations: A 1 HP unit is still compact enough to be installed near your existing tank or sump without major civil work in most homes, though the exact placement depends on your plumbing layout — our team can advise on the best location during a site visit. Proper earthing and a dedicated power point are recommended for safe, long-term operation.

If your home is smaller, the  Kirloskar 0.6 HP Pressure Boosting System for 1-2 BHK flats → is more cost-effective. If you have 4+ bathrooms or a larger villa, move up to the Kirloskar 1.5 HP Pressure Boosting System → .

Genuine Kirloskar, backed by service network

As an authorized Kirloskar dealer, we supply genuine units with full manufacturer warranty and after-sales support — not grey-market imports. Kirloskar Brothers Limited has been manufacturing pumps in India since 1888, and the HYPN range specifically has been deployed in demanding settings, including large hospital installations, which reflects the reliability engineering behind even the smaller residential-sized 1 HP unit. Browse the complete Kirloskar pressure boosting range → or pair this with a Kirloskar overhead water tank → for a complete setup.

Energy efficiency and running cost

At 0.75 kW, the 1 HP motor is sized to only run when needed, thanks to the automatic pressure-switch cycling described above — it isn't running continuously. For a typical 2-3 bathroom household, this keeps added electricity cost modest relative to the daily convenience of consistent pressure. Buyers comparing "1 HP pressure booster pump price" across brands should factor in this running-cost difference, not just the sticker price, since cheaper unbranded units often cycle on and off more frequently due to less precise pressure switches, drawing more power over time.

Maintenance

The 1 HP HYPN system is largely self-sufficient once installed — it's self-priming, so it doesn't need to be manually filled with water each time it starts. We recommend an annual inspection of the pressure vessel, switch calibration, and pipe joints, which helps the system maintain consistent pressure output for years and avoids the gradual pressure drop that untended systems can develop over time.

Q: How many bathrooms can a 1 HP pressure booster pump support? A: A 1 HP unit comfortably supports 2–3 bathrooms with simultaneous use at 2 outlets at a time.

Q: What is the difference between Kirloskar 1 HP and 1.5 HP pressure boosting systems? A: The 1 HP variant suits 2-3 bathroom homes; the 1.5 HP variant is built for larger homes or 4-5 bathrooms needing higher flow and head. See our 1.5 HP variant comparison → 

Q: I only have 1–2 bathrooms — is 1 HP overkill for me? A: Possibly. If you have a single bathroom and kitchen, the Kirloskar 0.6 HP Pressure Boosting System → is more energy-efficient and cost-effective for your usage pattern.

Q: Why does my water pressure still drop when two taps are open, even with a booster pump? A: This usually means your existing pump is undersized for the number of simultaneous outlets in use. Read our guide on HYPN vs regular booster pump — what's the difference → to understand why pressure-vessel-based systems like this one handle multi-point demand better than basic pumps.

Q: Can the Kirloskar 1 HP system work with my existing overhead tank? A: Yes, it's designed to connect to your existing tank or sump — no need to replace your storage setup. If you're also upgrading your tank, see our Kirloskar overhead water tank range →.

Q: What is the price of the Kirloskar 1 HP Pressure Boosting System? A: Rs 24,999 — contact us for the latest price, including installation.

Q: How do I know if I need 1 HP or should go bigger? A: If your home has 4 or more bathrooms, multiple floors, or outdoor water points like a garden hose, the Kirloskar 1.5 HP Pressure Boosting System → is the better fit.