WSP 7 GPM Booster Pump - 4 HP

If your water flow feels weak or pressure drops when you run multiple taps, this booster pump provides a steady 7 gallons per minute to keep water moving strongly through your building or water treatment system. It’s built to handle demanding water conditions with stainless steel durability.

The problem you’re facing

When you turn on a faucet or start a machine that needs water, the flow might sputter or feel weak. You may notice the shower pressure dips when the washing machine runs, or your water treatment equipment isn't getting enough feed flow to work properly. This can be frustrating when you expect steady, reliable water pressure for daily use or to keep your filtration or reverse osmosis system performing well.

Why this happens

Low water pressure or flow usually means your supply line or pump can’t push enough water to meet demand. If your treatment system requires a certain pressure to pass water through membranes or filters, insufficient pressure will slow down or reduce its effectiveness. Confirming the flow rate with a simple flow meter or by measuring output over time clarifies if you’re getting the 7 gallons per minute or more that your system needs.

What it costs you to leave it

Without enough pressure, your water treatment equipment might not work efficiently, reducing how much clean water you get and increasing how often filters clog or membranes need replacing. Appliances may run longer or less effectively. You might spend more time waiting for water or dealing with inconsistent flow during daily chores. Over time, low flow can contribute to faster wear on pumps and valves.

How this booster pump helps

This pump pushes water through your system at a steady rate—up to 7 gallons per minute—using a multi-stage centrifugal design. Each stage gently increases pressure, so the water moves smoothly and quietly without vibrations. The stainless steel wet end resists corrosion, giving it the strength to handle tough water conditions and continuous operation.

What it can handle

Designed for commercial reverse osmosis and demanding water treatment setups, this booster pump manages flow rates around 7 GPM with a 3/4 horsepower motor. It’s built to work continuously, pushing water through membranes or filters that need consistent high pressure. The stainless steel and corrosion-resistant impellers make it suitable for mineral-heavy or treated water. It’s a solid choice if your system or building needs to maintain pressure despite challenging conditions.

What you actually get

The pump features a stainless steel casing and wet end components, corrosion- and abrasion-resistant glass-filled composite impellers and diffusers, and a ball-bearing motor rated for continuous use. Connections are 1" NPT on both suction and discharge sides. Its mechanical seal and O-ring casing seal allow for routine maintenance without hassle.

Is this the right size for you?

This booster pump fits well if you require up to 7 gallons per minute of flow at a pressure suitable for typical commercial RO or filtration systems. If your needs are significantly lower, a smaller pump might be more efficient. For larger buildings or higher flow demands, you’ll want to size up to a bigger unit. Confirm your system’s flow requirements before ordering.

Living with it

Maintenance mostly involves periodic inspections and servicing of seals and impellers, usually during annual check-ups or as your plumber recommends. The pump’s design makes it straightforward to maintain without special tools or complicated procedures. Keep an eye on any unusual noise or vibration as signs it might need attention.

What it won’t do

This pump won’t improve water quality by itself—it’s meant to boost pressure and flow. If you have issues like sediment, chlorine, iron, or other contaminants in your water, you’ll need filtration or treatment systems designed for those problems. This pump supports those systems but doesn’t replace them.

Why buy it from Water Softener Plus

We sell pumps with real, serviceable parts that last. You won’t get a sealed unit that’s impossible to repair. Our equipment ships free anywhere in the U.S. from Tampa, Florida, and we back it with a 90-day money-back guarantee. When you buy from us, you get sizing advice from people who understand water systems, not just sales pitches.

Specifications

The next step

Order your booster pump today to restore steady water pressure and flow to your home or treatment system. Our team is ready to help you confirm sizing and get your pump shipped promptly, with no extra shipping fees.