Cartridges and replacement parts

The cartridges used in reverse osmosis (RO) systems are an integral part of the pre-filtration process. These cartridges help remove larger particles, sediment, chlorine, and other contaminants from the water before they reaches the RO membrane.

Choosing the right cartridges is important to ensure the longevity and efficiency of the entire reverse osmosis system.

Here are the types of cartridges commonly used in reverse osmosis systems:

1. Cartridges for mechanical filtration:
   Polypropylene cartridges are designed to trap and remove larger particles such as sand, silt, rust, and other suspended particles from the water. These particles can potentially clog the RO membrane and reduce its efficiency if they are not removed.
   How to choose: choose a cartridge with a micron rating that matches the particle size in your water source. Common micron ratings range from 1 to 50 microns. Smaller micron sizes (e.g., 1-5 microns) are appropriate for removing smaller particles.
2. Carbon Cartridges:
   Carbon cartridges, often made of activated carbon, are used to remove chlorine, chloramines, volatile organic compounds (VOCs), and some compounds that affect taste and odor from water.
   How to Choose: Consider the chlorine content of your water and choose a carbon cartridge with the right capacity. Cartridges labeled "briquette charcoal" or "granular charcoal" are common options.
3. Specialty cartridges:
   Specialty cartridges can remove specific contaminants such as heavy metals, fluoride, nitrates or arsenic, depending on the type of cartridge.
   How to Choose: Determine the specific contaminants to be removed and select a cartridge designed for that purpose. Specialty cartridges often use special materials or resins tailored to specific contaminants.
4. Combination cartridges:
   Combination cartridges combine several stages of filtration into a single cartridge. For example, they may have a polypropylene filter followed by an activated carbon stage.
   How to Choose: Consider the unique contaminants in your water source and choose a combination cartridge that meets those needs. Combination cartridges can help optimize the filtration process and save space.

Consider these aspects when selecting a cartridge for your reverse osmosis system:

• The micron rating of a cartridge indicates the size of particles it can effectively capture. Smaller micron sizes are more effective at removing smaller particles. However, a cartridge with too small a rating can clog quickly, resulting in lower flow rates and more frequent replacement.
• Consider the flow rate of your reverse osmosis system and the expected life of the cartridge. Higher flow rates may require larger cartridges or more frequent replacement.
• Determine the contaminants present in your water source. Have the water analyzed if necessary. Select cartridges specifically designed for the contaminants identified.
• Make sure the cartridge size and type are compatible with the filter housing or holder of your reverse osmosis system.
• Familiarize yourself with the recommended cartridge replacement schedule based on your water consumption and cartridge capacity. Regular maintenance is necessary to maintain effective filtration.

Thus, choosing the right cartridges for your reverse osmosis system involves analyzing your water source, determining the contaminants present, and selecting cartridges that effectively remove those contaminants.

Factors such as micron rating, flow rate, cartridge life and compatibility are important factors in selecting the best choice for the pre-filtration needs of your RO system.