Can You Add A Second Storage Tank To A RO System?

Yes, it is possible to add a second storage tank to a RO system. This can be done by connecting the new tank downstream from the existing one, which will act as an additional reservoir for your purified water. This allows you to increase the total capacity of your system and store more purified water. It also ensures that there is always a continuous supply of filtered water available for use. However, it is important to note that a second storage tank will require an additional pump or an upgrade of the existing one in order to be effective. Furthermore, you must ensure that all components are well-maintained and properly connected in order for your RO system to work efficiently. Therefore, if you decide to add a second storage tank, it is recommended that you consult with a professional for expert advice. With proper installation and maintenance, you should be able to enjoy the benefits of having additional purified water stored in your RO system.

How RO Systems Work?

How RO Systems Work
RO Systems Work

Reverse osmosis (RO) systems use semi-permeable membranes to filter out and remove contaminants from water, such as bacteria, salts, and other small particles. Water is pushed through the membrane at a high pressure, allowing only pure water molecules to pass through while leaving the larger impurities behind. The clean water is then collected in a reservoir or storage tank, while the reject stream with all the contaminants is discharged.

How RO Systems Work?

How RO Systems Work
RO Systems Work

Reverse osmosis (RO) systems are filtration systems that use pressure to force water through a semi-permeable membrane, trapping impurities and pollutants. The process is fairly efficient and cost effective. It is typically used to purify drinking water and remove contaminants from wastewater.

The primary components of an RO system are the membrane, a storage tank, and a pump. The membrane allows only clean water molecules to pass through. Contaminants are flushed away. The water is then stored in the storage tank until it is used or released. The pump helps push the water through the membrane and into the storage tank.

Can You Add A Second Storage Tank To A RO System?

Can You Add A Second Storage Tank To A RO System
Adding Second storage tank

Yes, it is possible to add a second storage tank to a reverse osmosis (RO) system. Adding a second storage tank will help increase the amount of purified water available at any given time. This can be useful for large families or for commercial use where more purified water is needed in order to meet demand.

What Are Storage Tanks For RO Systems?

What Are Storage Tanks For RO Systems
Storage Tanks For RO Systems

Storage tanks are designed to store purified water produced by a reverse osmosis (RO) system. They hold the filtered water until it is needed, and they can also provide added pressure to the RO system, allowing for better performance. If a household experiences frequent drops in water pressure, adding a storage tank may be beneficial.

Types Of Storage Tanks For RO Systems

Types Of Storage Tanks For RO Systems
Types Of Storage Tanks For RO Systems

When considering if you can add a second storage tank to your RO system, the type of storage tank is important. Storage tanks come in many forms, such as pressurized or atmospheric tanks. Pressurized tanks are typically made from fiberglass and must be installed by a professional with knowledge of local plumbing codes because they require an extra pressure regulator and check valve system. Atmospheric tanks are made from polyethylene materials and do not require a special installation procedure, but they must be installed at least 10 feet above the system’s water inlet valve.

How To Add A Second Storage Tank To A Reverse Osmosis System?

Adding a second storage tank to your reverse osmosis system is relatively easy and can provide increased convenience. The process typically involves connecting the new storage tank to your current system, attaching the necessary hoses, and replacing any appropriate filters.

If you’re looking to add a second storage tank to your reverse osmosis system, here’s a step-by-step guide to get you started:

1. Start by turning off the water supply and shutting off the power to your current reverse osmosis system. This helps to ensure that no water or electricity is flowing through the system during installation of the new storage tank.

2. Unscrew the nut between your current storage tank and the reverse osmosis system and remove the air filter from the tank’s bottom.

3. Connect your new storage tank to the existing unit with a flex hose. Secure it with included clamps, making sure that all connections are secure before proceeding further.

4. Attach the new tank’s inlet hose to a T-valve and then to the cold water supply line. If you are using a pressure-style system, you will also need to attach the outlet hose from the current storage tank to your new tank, as well as attaching the overflow tube from your new tank to a nearby drain.

5. Once your hoses and tubes are connected, replace any necessary filters that come with the new tank, such as sediment or carbon filters.

6. Turn on the water supply and power up your reverse osmosis system again and check for any signs of leaks in the connections you just made. If all is well, you’re ready to enjoy the convenience of having a second storage tank for your reverse osmosis system!

How Can I Check My Reverse Osmosis Storage Tank To See If I Should Add A Second Tank?

The first step is to check the volume of water produced by your reverse osmosis system. This can typically be done by checking the manufacturer’s specification sheet or on the side of your machine. Depending on your system and its production rate, you may find that adding a second storage tank will help increase the overall capacity and provide more consistent water production.

To determine if a second storage tank is appropriate for your system, calculate the total amount of water used in a day and compare that to the maximum production rate of your reverse osmosis system. If the daily usage exceeds the output capacity of your RO unit, then you should consider adding an additional storage tank.

It is also important to consider the size of your home when determining how many storage tanks you need. If your residence has multiple bathrooms with faucets, a second tank may be necessary.

Do The Storage Tanks Have To Be The Same Size?

No, the two storage tanks do not need to be the same size. It all depends on your needs and how much water you plan to store. When considering two tanks, one tank is often larger than the other so that it can hold more reserve water. This way if there is an unexpected spike in demand or loss of water pressure due to an outage, the larger tank can provide a backup source of water. Additionally, one tank can be used for short-term storage and the other for long-term storage, allowing for more efficient use of space. Keep in mind that if you are using two tanks, they should not be connected directly to each other. They will both need their own inlet and outlet valves to be installed on the reverse osmosis system. Additionally, an air gap should be provided between the two tanks to prevent any potential contamination.

Can I Put The Second Storage Tank In A Different Location?

Yes, you can locate the second storage tank in another location as long as it is within the same building or facility. Additionally, if the additional storage tank requires a pump to move water from the RO system to it, these components must be installed and connected correctly for proper operation. It’s important to note that any additional plumbing should be done by a qualified professional to ensure that it meets all applicable plumbing codes. Additionally, the water pressure of the second storage tank should be equal or greater than the RO system so as not to affect its performance. Finally, do not forget to take into account any additional electrical requirements when locating and installing additional storage tanks.

Can I Put A Second Storage Tank By My Refrigerator For Better Water Flow?

Yes, it is possible to add a second storage tank to your RO system. This can increase the water flow rate from your refrigerator and provide additional storage capacity for purified water. To install a second storage tank, you will need to connect the incoming line from your RO membrane directly to the new tank. The existing supply line should be connected from the new tank to the refrigerator. This setup should be pressure tested prior to use to ensure that all connections are secure and there are no leaks. Additionally, a pressure reducer may need to be installed after the second storage tank in order to maintain adequate water pressure for your refrigerator.

Can You Hook Up Reverse Osmosis To Refrigerator?

Can You Hook Up Reverse Osmosis To Refrigerator
Reverse Osmosis To Refrigerator

Yes, it is possible to hook up a reverse osmosis (RO) system to a refrigerator. However, there are certain considerations you need to make before doing so. First, the size of your RO system must match the capacity of your refrigerator or freezer. Second, you need to account for any additional water pressure that may be required for the refrigerator’s operation. Lastly, you need to consider any additional components that may be needed for the connection such as a tee-fitting and shutoff valves.

Potential Issues When Adding A Second Storage Tank

  • Pressure drop and its effect on water flow: Adding a second storage tank to an existing reverse osmosis (RO) system can adversely affect water flow through the system, as the pressure drop across the additional tank creates increased resistance. This could result in inadequate production capacity and reduced filtration performance, particularly if the first tank is close to full.
  • Effect on water quality: Adding a second storage tank to a reverse osmosis (RO) system can have a positive effect on the water quality that is produced by the RO system. The additional storage capacity can help ensure that when there is an increase in demand for treated water, it can be provided quickly and efficiently. Additionally, having two tanks allows for more frequent regeneration cycles, which can help reduce scaling and mineral build-up on the membranes, thus improving the overall performance of the system.


Can I use RO reject water in another RO?

Yes, you can use RO reject water in another RO system. Provided the water has been adequately stored and is free of contaminants, it can be used as feedwater for a second RO system. Make sure to test the incoming water to confirm its suitability for an RO system before proceeding with installation. Additionally, keep in mind that if your existing RO system is undersized, a second storage tank can be added to increase capacity. This will enable the first RO system to continue running at its optimal operating parameters while boosting the total output of water from both systems.

Can I convert my wall mounted RO to an under the sink RO?

Can I convert my wall mounted RO to an under the sink RO
RO under the sink RO

Yes, you can convert a wall mounted reverse osmosis system to an under the sink unit. You will need to purchase the necessary parts from your RO manufacturer or supplier, such as a conversion kit that contains a new faucet and tubing, in order to make the switch. The process is fairly straightforward and should not require any special tools or skills. However, if you have any concerns about attempting the conversion yourself, it is always best to consult with a professional for guidance.

How often RO system needs new filter?

The frequency at which a reverse osmosis (RO) system needs new filters depends on how much water is used and the quality of the incoming water. Generally speaking, an RO system should have its pre-filters changed every 6 to 12 months, while post-filters should be changed once in 2 years. It is also important to regularly maintain the other components of the RO system, such as membrane elements and storage tanks. If additional storage capacity is needed, a second storage tank can be added to an existing RO system.

How does RO expansion tank work?

An RO expansion tank is different than a standard storage tank. Unlike a conventional storage tank that stores tap water, an RO expansion tank holds the excess reverse osmosis filtered water until it can be used again. Water from the RO system passes through the expansion tank, where it mixes with air and becomes pressurized. This pressurization increases the system’s output and efficiency while reducing water waste. The expansion tank is also beneficial because it prevents backflow, which can otherwise damage the RO membrane.


it is possible to add a second storage tank to a reverse osmosis system. This can be done by installing a booster pump and an additional pressure switch. This will enable the system to have enough pressure to feed a secondary storage tank that can provide more water on demand or store more filtered water than a single storage tank would. Additionally, it can help to reduce the amount of waste water generated by a reverse osmosis system. However, there are several things you should consider before adding a second storage tank such as the cost, complexity, and other factors discussed in this article. Ultimately, whether or not adding a second storage tank is right for your specific RO system will depend on your unique requirements and situation.

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