Types of Sediment Filters

A Sediment filter prevents silt, sand grains, clay and flecks of rust from entering your water supply. They are an affordable way to protect your pipes and water-using appliances from damage, while improving your drinking water quality.


When shopping for a Sediment filter, consider its micron rating. This indicates what size particles it will restrict. A micron is one millionth of a meter.

Pleated Filters

Standard throwaway filters provide a bare-minimum level of protection for your HVAC system and the air you breathe. Designed to be thrown away when spent, fiberglass filters don’t have much surface area and often don’t filter out small particles like pollen, dust mites, mold spores, bacteria and viruses. They’re also prone to falling apart in high humidity environments and can damage your HVAC unit.

Unlike the fiberglass variety, pleated filters are a lot more durable and effective. Made from pliable materials such as polyester, cotton and paper and housed in a cardboard frame with folds (also known as pleats) that give them more surface area, these filters can be permeated with activated carbon for added odor removal abilities. Pleated filters also tend to have higher MERV ratings than their fiberglass counterparts and can effectively trap larger particle sizes.

Because pleated filters are able to trap more debris, they can often go longer between changes than traditional filters, preventing costly clogs and helping your system stay healthier for longer. They’re also more environmentally friendly than standard throwaway filters because they are more likely to be recycled, rather than sent straight to a landfill. If you’re interested in upgrading to a more efficient filter for your home, contact Cabrillo today to request your free, no-pressure estimate. Our Bay Area plumbing, heating and cooling experts are here to help!

String-Wound/String-Spun Filters

The first type of sediment filter is a string-wound or string-spun cartridge. This cartridge has multiple layers of string wound tightly around a core like stainless steel or polypropylene. The woven layers of string have a controlled thickness, with the outer layer being thicker to catch larger sediment particles and the inner layers getting thinner to allow smaller debris to pass through. This is a more cost-effective option than pleated filters.

Another newer design is the melt-blown filter, which is also known as a nanofiber filter. These filters have a core made of fibers from a material like glass, ceramic, or cellulose. They are made with a more continuous filament than string-coiled or spun cartridges. As a result, they can filter out even more particles and contaminants.

Sediment filters are rated by their micron number, which is the size of the smallest particle they can catch. They can be “nominal” or “absolute.” Nominal filters trap about 85% of particles that are the size of their micron rating, while absolute filters catch 99.9% of those particles.

Whether you’re cleaning up your well water from rust, dirt, or other unwanted sediments, or protecting your home appliances and appliances from damage by removing sand and silt, Express Water offers a wide range of whole-house sediment filters to help you achieve the best results. Check out our full line of sediment filters to find the perfect fit for your home.

Carbon Paper Filters

A carbon filter is designed to reduce odors and VOC’s in the air, and it works by adsorption. It has a wide surface area, which gives the gases a large amount of space to stick onto it. Activated carbon is also inexpensive, and it’s environment-friendly since it can be recycled into paper.

These filters can be used in conjunction with a sediment filter, or they can be used on their own. They are available in various sizes, and they can be custom-cut for the application at hand.

It is recommended that you clean the filter segment with water after each use, and then let it dry completely. Once the filter is clean, you should install it in its initial state and tighten the valve, to avoid water leakage during operation.

It is important to know the size of the carbon filter segment, as this will determine the diameter of the pore openings, and hence the amount of dirt that can be filtered. The size of the filter is usually measured in microns, and the higher the number, the smaller the pore size. The water filter micron rating should be stated in the product description, so that you can easily identify which size to choose. This will ensure that you don’t get a filter that is too small, or one that is too big.

Whole-House Filters

Sediment filters are a great addition to any home filtration system, especially those that use UV water treatment systems. These systems require a sediment prefilter to be installed before the system because sand, silt and dirt can reduce the effectiveness of the UV rays by scratching the fine moving parts. If you have a well-water system, a sediment filter can also help extend the life of your household plumbing and other water-using appliances.

A good whole house sediment filter will separate large particles from the water, such as sand, red worms and suspended solids and improve overall home filtration. It is best to choose one that has a large filtering surface area for maximum efficiency. These filters come in various sizes and micron ratings to suit different needs. The lowest micron rating is generally for commercial use in cafes and offices, while the highest is a standard residential model.

When choosing a sediment water filter for your home, you should consider the size, flow rate, warranty protection and cost. You should also check if the seller or manufacturer offers free installation and servicing. You should also look for reviews and credibility of the sellers and manufacturers online to ensure that you are buying a quality product. Also, if you are planning to install the filter yourself, make sure that it is easy to handle and doesn’t require any tools or technical knowledge.