The correct filter depends on your Home Master Filter model. Check the model number on your unit (on the sticker) and match it with the proper filter change set using The Perfect Water’s Filter Change Set Selection Guide. Common models include the Home Master Artesian RO System (TMAFC series) and Home Master Jr. (TMJrF2) If you’re unsure, call customer service at 877-693-7873 for assistance.
Recommended Replacement Schedule for RO System Components
Reverse osmosis (RO) systems require routine maintenance to ensure optimal performance and water quality. The replacement frequency of RO filters and membranes can vary based on water conditions, usage levels, and the presence of contaminants.
1. Pre-Filters (Sediment and Carbon/IRON Filters)
Sediment and carbon or Iron pre-filters should be replaced annually or sooner if needed. These filters protect the RO membrane by removing chlorine, particulates, and other substances that can cause damage or reduce efficiency. The exact replacement interval depends on your water quality and daily usage.
2. RO Membrane
The RO membrane is the core component—often considered the “heart” of the system—and requires replacement every 3-5 years, provided the pre-filters are maintained on schedule and the water quality is within the General System Specification. Its lifespan can be shortened by exposure to high levels of chlorine, sediment, elevated total dissolved solids (TDS), iron or iron bacteria.
3. Post-Filters (Polishing Filters)
Post-filters, which enhance taste and odor, should generally be replaced annually. If you notice any change in the taste or quality of your drinking water, the filter should be replaced sooner.
4. Monitoring System Performance
Actual replacement timelines may vary due to environmental factors such as high sediment content, elevated TDS, or chlorinated water. It is essential to monitor key performance indicators—including flow rate, taste, and TDS levels—to determine when service is needed. Keep in mind that Artesian and HydroPerfection RO systems add minerals to the water which show up as TDS.
Replacing filters on schedule is critical to maintaining water quality, protecting your RO system, and ensuring long-term performance. When pre-filters become saturated and lose efficiency, they can no longer properly remove sediment, chlorine, and other contaminants. As a result, these impurities pass through to the RO membrane, reducing its effectiveness, damaging it and thus shortening its life..
A compromised membrane can lead to reduced water flow, unpleasant taste or odor, and diminished contaminant removal. If filters are left unchanged for extended periods, the system may experience pressure buildup, increasing the risk of leaks or component failure.
Routine filter replacement ensures system efficiency, safeguards the membrane, prevents mechanical issues, and delivers consistently clean, safe drinking water.
System life depends on maintenance and water quality. A pre-filtration system can remove larger contaminants before they get to your RO system and extend filter life. Monitor your incoming water quality - if TDS is over 2000 ppm regularly, consider additional pre-treatment. Follow the recommended replacement schedule, don’t delay, and put extra strain on the next filters. Flush new filters before use and do system sanitization every now and then. Keep the system in a temperature-controlled environment away from direct sunlight. Check fittings and connections regularly to prevent small issues from becoming big problems. Quality matters - use genuine Home Master filters for compatibility and performance.
Filter replacement is a DIY friendly process that most homeowners can do themselves. Home Master systems are designed to be user-friendly with color-coded filters and instructions. The basic process is to shut off the water supply, release system pressure, unscrew old filter housings, replace filters, and reassemble the system. No special plumbing skills are required, but basic tool usage helps. At The Perfect Water, we have replacement guides and video tutorials for each system type. But if you are not comfortable working with plumbing connections or run into issues like cross-threaded housings or leaks that won’t go away, call a plumber to ensure proper installation and prevent water damage.
Upgrades are possible. For example, you might upgrade from standard catalytic carbon filters to the IRON pre-filter for enhanced chloramine and Iron removal or add the UV sterilizer. Contact technical support for guidance on upgrade options specific to your Home Master model.
Home Master Iron RO Replacement Filters are designed for well water with iron up to 1ppm of ferrous iron. These systems use 5-micron filters, iron-specific media, catalytic carbon, and KDF85that remove up to 98% of iron and other well water contaminants. Iron-specific filter sets have enhanced pre-filtration to prevent iron fouling of the RO membrane. For sulfur removal, including a catalytic carbon filter works well. Some well water situations may require additional pre-treatment, like iron/sulfur oxidation systems, before the RO unit. Effectiveness depends on iron and sulfur levels, pH, and whether the contaminants are dissolved or particulate. Water testing will determine the best filtration approach for your well water. Contact technical support for guidance.
Yes, Home Master RO systems with the right filters remove both fluoride and heavy metals. The RO membrane is the one that removes dissolved contaminants like fluoride, lead, mercury, arsenic, and other heavy metals, with a 90-98% removal rate. Pre-filters remove larger particles and protect the membrane. Post-filters provide final polishing. The system only works if the filters are functioning properly - old or damaged membranes lose their rejection capacity. Specific nitrate and arsenic filters are available for high-contamination situations. Regular testing and timely filter replacement ensure consistent contaminant removal performance.
Yes, flushing new filters is essential before consuming the filtered water. New carbon filters contain fine carbon particles that need removal. Please perform the “Fill and drain” procedure given in the instructions. This process also fills the system, removes air pockets, and ensures proper flow rates. Skipping the flush can result in cloudy water, a carbon taste, or reduced system performance. Some filters may require longer flush times - follow the specific instructions provided with your replacement filter set. If the system is connected to an ice maker, be sure to close the valve feeding the ice maker or water center.
Yes, specialized filter change sets are specifically designed for iron-heavy well water up to 1ppm of ferrous iron. We recommend additional Whole House Iron Filtration for well water exceeding 1ppm of ferrous iron. The Home Master Iron RO system replacement filters feature enhanced pre-filtration stages that handle iron contamination more effectively than standard sets. These systems include specialized sediment filters and iron-reduction media that prevent iron fouling of the RO membrane. Iron-specific filter sets typically require more frequent replacement due to the aggressive nature of iron contamination. Water testing determines if iron-specific filters are necessary for your well water conditions.
GAC (Granular Activated Carbon) and Catalytic Carbon are two different types of carbon, despite both being carbon-based. GAC filters are great at removing chlorine, volatile organic compounds (VOCs), pesticides and chemicals that cause taste and odor issues. They are NSF 42 certified and can remove up to 95% of chlorine and many organic contaminants. Catalytic Carbon is specially treated activated carbon that removes chloramines - a disinfectant used by water treatment facilities that standard GAC can't remove. Catalytic carbon also handles hydrogen sulfide better than regular GAC. Both types fit the same sizes, but catalytic carbon is more expensive due to the extra processing. All Home Master RO systems contain catalytic carbon.
Taste changes after filter replacement are normal and usually temporary. New carbon filters often impart a slight "new filter" taste for the first few days until they're fully conditioned. Inadequate flushing of new filters is the most common cause of taste issues - ensure you flush the system thoroughly before use. Different tastes can also indicate you've upgraded to a different filter type (like switching from GAC to catalytic carbon) or that your new filters are removing contaminants the old, saturated filters were missing. In some cases, if filters were overdue for replacement, you might notice improved taste as new filters restore the system's contaminant removal capability. If unusual taste persists beyond a few days of normal use, check the installation and contact support.
The Home Master Artesian RO System uses the Artesian Water Filter Change Set (ISetTMA8), which includes specialized filters designed for the Artesian's unique remineralization technology. This set contains 5-micron Artesian remineralization filters and coconut shell granular activated carbon filters with 3/8" connections. The filters are NSF certified to standard 42 for chlorine reduction and Class V particulate reduction, capable of removing up to 95% of chemicals, including VOCs, TOCs, and chlorine. The Artesian system's distinguishing feature is its ability to add back beneficial minerals, so using the correct filter set maintains this functionality. Always verify your exact model number, as variations like the TMAFC (Full Contact) may require different filter configurations.
Regular filter replacement is essential for maintaining water quality, protecting system components, and safeguarding your health. Filters have a limited capacity; once they reach saturation, they can no longer effectively remove contaminants. In some cases, they may even release previously trapped pollutants back into the water supply.
When pre-filters are not replaced on time, harmful substances can bypass filtration and reach the RO membrane. This not only reduces filtration efficiency but can also cause irreversible damage to the membrane, leading to costly repairs or system failure. Additionally, saturated filters can harbor bacterial growth, posing a direct health risk.
Clogged filters also restrict water flow, placing unnecessary strain on pumps and other internal components, which accelerates wear and reduces system lifespan. Because performance declines gradually, water quality may deteriorate without obvious warning signs until significant damage has occurred.
Adhering to recommended replacement schedules ensures:
- Optimal contaminant removal
- Protection of the RO membrane and internal components
- Consistent, great-tasting water
- Prevention of health risks
- Long-term cost savings
Investing in routine maintenance is a simple and affordable way to protect your system and ensure peace of mind for your family’s water safety, far less costly than system replacement or medical issues caused by contaminated water.