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Curious to know what a 4-stage reverse osmosis system might look like under your sink?
Check out our helpful diagram!
Check out our diagram of a 4-stage reverse osmosis system! It illustrates an under sink RO water filter featuring two pre-filter stages, a reverse osmosis membrane, a carbon post-filter, a water storage tank, and an RO faucet.
When it comes to reverse osmosis systems, they generally consist of various components that work together. In the diagram above, we’ve outlined the typical configuration you’ll find in most 4-stage at-home systems. Just remember, your setup might have slight variations.
A 4-stage RO system simply means that you will have four stages of filtration. Each stage will remove different contaminants.
Most 4-stage reverse osmosis systems will be comprised of the following:
Before reaching the reverse osmosis membrane, one or multiple pre-filtration stages are employed to purify water. This is crucial for ensuring the efficient functioning of the reverse osmosis system by eliminating debris that can clog the membrane as well as chemicals. Typically, a sediment pre-filter and a carbon pre-filter are utilized at this phase.
The sediment filter will remove larger bits of dirt, debris, and dust so that they won’t clog the RO membrane stage.
The carbon pre-filter’s primary role is to remove chlorine and its byproducts from the water. Chlorine can damage the reverse osmosis membrane, so it must be removed before the water moves through it.
The membrane is the star of the show. It is a semipermeable membrane, meaning that it has minuscule pores that almost solely permit water molecules through and block everything else.
The post-filter serves as the last filtration stage following water’s passage through the reverse osmosis membrane. It enhances water purity by eliminating any remaining contaminants that might have been missed in earlier stages. Also, it removes any residual taste the water might have taken on while being stored in the storage tank.
Of course, your reverse osmosis system will contain other components aside from the filtration stages, which are:
The primary objective of the module is to create a centralized hub that connects all system components, facilitating the input and output of water.
One of the primary drawbacks of reverse osmosis is its slow processing speed. To address this, many setups incorporate a storage tank to retain filtered water until needed. Countertop models do not come with storage tanks, only under sink models.
A water dispenser provides easy access to purified water, typically through a dedicated faucet.
This component facilitates the disposal of all the wastewater produced by the reverse osmosis system.
This is the source of input water. It’s basically a connection that supplies cold water from your plumbing system.
Utilizing an automated shut-off valve maximizes the efficiency of your RO system and guarantees it operates only when necessary. This valve halts the system once the storage tank reaches full capacity.
To safeguard the system from potential damage, the implementation of a check valve is vital as it obstructs any possible backflow of water from the storage tank or drain line.
The flow restrictor regulates the wastewater rate, ensuring the RO system maintains adequate pressure for water to pass through the membrane.
Tubing is utilized at multiple junctures within the system to establish connections between its components.
Fittings are crucial for ensuring secure connections and preventing any leaks.
Tools and Supplies:
If you have any questions about our 4-stage RO system diagram please don’t hesitate to leave a comment below!
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