Your residential reverse osmosis filter should be able to handle usage surges, which typically happen in the early morning or late evening. Thus, your whole-house RO system should have a stainless steel centrifugal pump, instead of a rotary vane or diaphragm pump. Centrifugal pumps can easily adjust to heavy usage without compromising filtration efficiency.
Other than a heavy-duty pump, residential RO filters also have a thick storage tank, pre-treatment filters, and distribution components. For the pre-treatment system, we recommend an antiscalant mechanism over water softeners. An antiscalant system is more cost-effective, doesn’t require salt bags, and softens hard water.
The biggest factor in choosing a whole-house RO system is its capacity. The average American uses approximately 80 to 100 gallons of water each day, but the number still varies per household. Consider your family’s water usage during peak hours, such as when the bathrooms, kitchen, and laundry are all in use.
Choose your storage tank size based on your household’s maximum water usage at any point in the day. The volume of the tank should be equal to your average daily consumption. We offer storage tanks that hold 300 gallons and 500 gallons of RO water.
Your water may need additional pre-treatment, depending on its source. This maximizes the performance of your RO system, making sure to eliminate all the salts, chemicals, and dissolved matter. Pre-treatment also prevents water contaminants from seeping into the reverse osmosis membrane, prolonging the lifespan of your RO system.
Pre-treatment removes larger contaminants, including iron, silt, and sand. The anti-scalant mechanism softens hard water to keep the salts from damaging the RO membrane.
Have a water quality test conducted before choosing a whole-house RO system to determine the condition of your feed water and the nature of its contaminants. This will help you know if your water source requires pre-treatment.