WSP 12500 GPD Reverse Osmosis System

The WSP 12500 GPD Reverse Osmosis System is designed to reduce dissolved solids and specific contaminants from your drinking or process water. It produces up to 12,500 gallons per day of low-TDS water, ideal for large-scale needs where water quality affects taste and equipment performance.

The problem you’re facing

If your water tastes off, maybe a bit salty or metallic, or if you see spotting on glassware and appliances, it’s likely caused by dissolved solids in your water. These minerals and contaminants don’t just affect taste—they can interfere with processes that rely on clean water, whether in your home or facility.

Why this is happening

Dissolved solids are minerals and compounds naturally present or introduced into water from pipes and source water. When water passes through a standard filter, these dissolved substances often remain because they’re too small to catch. The key test to confirm this is measuring Total Dissolved Solids (TDS) with a handheld meter—a reading above about 300 ppm usually means you’ve got noticeable dissolved solids affecting water quality.

What it’s costing you to leave it

High dissolved solids mean more buildup inside water heaters and pipes, which shortens their lifespan. You’ll notice harder-to-clean spots on dishes, glassware, and fixtures, and your appliances may have to work harder, using more energy. In processes like brewing coffee or manufacturing, these solids can alter taste and product consistency. Over time, this adds up to more cleaning, maintenance, and replacement costs.

How this system fixes it

This reverse osmosis system works by pushing water through very fine membranes that act like a microscopic strainer. As pressurized water crosses each membrane, dissolved solids and many contaminants are trapped and flushed away, leaving much cleaner, lower-TDS water on the other side for your use.

What this system can handle

The WSP 12500 GPD system uses five large 4-inch by 40-inch membranes to process up to about 12,500 gallons daily. It’s built for operations needing high-volume purified water, such as large food and beverage facilities, car washes, greenhouses, and industrial processes. The system runs on a 220-volt pump with solenoid controls, skipping complex electronics for straightforward operation. It’s designed to handle well-pretreated feed water that’s been dechlorinated and clarified, ensuring the membranes work effectively and last longer.

What you actually get

This is a floor-stand reverse osmosis unit configured around a 220-volt pump and solenoid valve setup, equipped with five 4x40-inch membranes mounted on the 440 series platform. The system weighs around 200 pounds fully assembled. The exact configuration is confirmed when sized to your water conditions.

Is this the right size for you

This system suits large-scale applications requiring several thousand gallons of purified water daily. If your needs are smaller—like a typical household or a small business—you might consider a unit with lower capacity to avoid unnecessary expense and maintenance. Conversely, if you require more than 12,500 gallons daily, you’d need multiple units or a custom solution.

Living with it

Maintaining this system means regularly checking and replacing membranes based on your feed water quality and volume—usually every couple of years. You’ll also need to keep pretreatment up to standard to protect the membranes. While operation is straightforward with switch controls, routine monitoring ensures the system keeps performing well. Expect periodic filter changes and occasional cleaning to maintain output quality.

What it won’t do

This RO system does not remove bacteria, viruses, or chlorine by itself—your feed water must be dechlorinated and clarified beforehand. It also won’t handle iron or hydrogen sulfide without pretreatment. For those problems, you’ll need additional filtration or conditioning equipment before the RO stage.

Why buy it from us

Water Softener Plus supplies this unit with proven, serviceable components that can be maintained and repaired over many years. We ship from Tampa with free U.S. delivery included. Our team offers real sizing advice and support based on your water problem and ZIP code. Plus, there’s a 90-day money-back guarantee if you decide this system isn’t right for your needs after purchase.

Specifications

What this system handles

• Dissolved solids (TDS)
• Off-tasting drinking water
• Consistent process water

The next step

Request a free quote and personalized sizing from the WSP team. Provide your water problem details and ZIP code, and we’ll confirm the best configuration for your water and send pricing information.