Choosing the correct pump power is essential to ensure stable water pressure throughout your home. Undersized pumps may result in weak water flow on upper floors, while oversized pumps can waste energy and increase costs.

The table above provides a practical reference for selecting the appropriate pump power based on two key factors:

1. Number of floors in the house
2. Number of faucets used simultaneously

🔹 How to Read the Table

• The left section shows the recommended power (in watts) according to the number of floors.
• The bottom row indicates the number of faucets used at the same time.
• As the number of floors increases, a higher wattage pump is required to maintain sufficient water pressure.
• Similarly, the more faucets that are used simultaneously, the greater the required pump capacity.

🔹 Key Insights

• A 1-floor home typically requires 150W–400W, depending on usage.
• A 3-floor home generally needs 250W–800W.
• A 6-floor home may require up to 1300W to maintain proper water pressure.
• If 5–6 faucets are used at the same time, a 1300W pump is recommended.

🔹 Why Proper Sizing Matters

• Ensures consistent water pressure on all floors
• Prevents pump overworking and premature failure
• Reduces electricity consumption
• Improves overall system efficiency

Before selecting a pump, always consider both building height and peak water demand. If you are unsure, it is safer to choose a slightly higher capacity within the recommended range to ensure stable performance.

Number of floors of the house	6	500W	600W	900W	1000W	1300W
	5	400W	500W	700W	800W	1100W
	4	300W	400W	600W	700W	900W
	3	250W	300W	500W	600W	800W
	2	200W	250W	400W	500W	700W
	1	150W	200W	300W	400W	600W
	Number of Faucets Used Simultaneously	1-2	2-3	3-4	4-5	5-6