When you install a reverse osmosis system under your kitchen sink, it forces the water through several stages of filtration before it comes out of the faucet. Most systems include a sediment filter that removes dirt, sand, and rust. The carbon pre-filters target chlorine and other chemicals that often give the water an unpleasant taste or odor. The main filtration stage consists of a semipermeable reverse osmosis membrane that can remove up to 99% of many dissolved contaminants, including lead, arsenic, nitrates, and fluoride. But to keep the system working correctly and your water pure, you must provide the equipment with regular care and upkeep.

Replace the Sediment Filter

As with any type of filter, the sediment filter will become dirty and clogged over time. Most experts recommend replacing it once every 6 to 12 months. However, if your home already struggles with high sediment levels, you may need to change it more often. Adding this maintenance tip to your calendar is a great way to make sure you don’t overlook it. It’s a vital form of upkeep that protects the other filtration stages from unnecessary wear.

Replace the Carbon Pre-Filters

If you don’t keep the carbon pre-filter changed regularly, it can’t remove chlorine from the water, which can end up damaging the semipermeable membrane. Most systems need this filter replaced once every 6 to 12 months to keep the water pure.

Replace the Reverse Osmosis Membrane

Even though the semipermeable membrane does most of the heavy lifting, it’s much more durable than the sediment and carbon filters, with most lasting two to five years before they need replacement. Be sure to check the owner’s manual since different brands provide their own replacement guidelines.

Sanitize the System Annually

Just because the system is supposed to improve your water quality doesn’t mean it can’t hurt it if you don’t sanitize the equipment once a year. This includes the filter housings and tubing. Ideally, you’ll perform this task when you’re replacing the sediment and carbon pre-filters since you’ll already have some of the system disassembled.

You’ll also want to have the system professionally inspected once a year. This way, a skilled plumber can easily spot worn-out O-rings, clogged filters, and other issues that impact the system’s ability to maintain pure water. If the plumber suspects a problem, a TDS test can be performed to check for elevated dissolved solids, which may indicate that the filters or reverse osmosis membrane need to be replaced. Most reverse osmosis systems will last anywhere from 10 to 15 years with regular maintenance. If you live in Muncie, IN or a surrounding area and need reverse osmosis services, make your first call to Aqua Gold Water Treatment.