Chlorine injection systems are the most effective way to treat iron bacteria in well water, usually caused by ferrous and ferric iron. As the tech involved is relatively simple, most systems will do a good job. If you’re in the market for a unit, you should base your decision on the tank capacity, flow rate, warranty, and ease of use. The specifications you’re looking for really depend on the needs of your home.
The best product we evaluated is the SpringWell CIS Chemical Injection System for Well Water. It has a 35-gallon tank capacity and a 30 GPM flow rate, which means it’s ideal for larger homes with up to 7 bathrooms. Plus, it can be easily combined with other SpringWell systems to provide a wholesome water filtration experience.
In terms of ease of use, the US Water 410-CLBOOST is the best option as it’s a fully automatic system and installation is straightforward. If you’re on a tight budget, we’d recommend the J-PRO-22 Chemical Injection System.
1. Springwell CIS Chemical Injection System for Well Water
- Capacity – 35 Gallon
- Warranty – lifetime warranty
The SpringWell CIS Chemical Injection System for Well Water is the best chlorine injection system for eliminating iron bacteria, sulfur, and manganese. Its exceptionally high flow rate and tank capacity make it a perfect option for large homes with multiple bathrooms.
High Flow Rate and Tank Capacity
The SpringWell CIS Chemical Injection system can manage flow rates of up to 30 GPM. This flow rate is high enough to cover seven bathrooms—ideal for both very large houses and small apartment complexes.
It also has a 35-gallon tank, which means it can chlorinate high volumes of water in one go. This is one of the largest tanks we’ve come across when testing chlorine injection systems for well water. To illustrate just how big it is, the other two units on our list have 15-gallon and 5-gallon capacity tanks. Pretty crazy, right? The huge tank is great if you have a large family that uses a lot of water on a daily basis.
Lifetime Warranty and Money-Back Guarantee
The unit has a lifetime warranty on both tanks and valves, which gives it much better coverage than the other two units on our list.
Additionally, it comes with a 6-month money-back guarantee, which gives you enough time to try it and return it if it’s not suitable for your well reservoir. Let’s be honest: 6 months is definitely long enough to figure out if this system is right for your home.
Easy Integration with Other Systems
SpringWell also offers accompanying UV filtration, whole house filtration, and reverse osmosis filtration systems, all of which are made to be compatible with the SpringWell CIS and can be easily attached. This is a big selling point of this unit since chlorine injectors require additional filtration to purify water.
Chlorine injection systems draw the well water into a tank where the chlorine is added. Chlorine neutralizes high levels of iron, which is common in well water, and kills iron bacteria.
However, after the chlorine injection, the water needs to be treated again and the chlorine removed for the water to be safe to drink. For this purpose, chlorine injection units must be paired with regular filtration units to make well water usable after treatment.
The fact that all of the SpringWell systems are designed to fit together is not only convenient, but it saves you a lot of headaches during the installation.
The only downside of the SpringWell CIS is the price. The unit itself costs a lot, but when you pair it with the additional systems, which cost even more, this chlorine injector becomes a considerable investment.
- 6-month money-back guarantee, so you have loads of time to try it out and see if it’s right for you
- 30 GPM, which means it’s suitable for large homes with up to 7 bathrooms!
- Lifetime warranty on the tank and valves so you’re fully covered for repairs and replacements
- It can be easily combined with other SpringWell systems for super-effective filtration
- The additional filtration systems cost more than the injector itself
2. US Water 410-CLBOOST Well Water Chlorine Injection System
- Capacity – 15 Gallons
- Warranty – 2 years
The US Water 410-CLBOOST may be the best choice if you’re new to chlorination or aren’t familiar with well water filtration systems. It’s an automatic system that’s easy to install and requires very little maintenance.
Fully Automatic
This model is fully automatic and has an adjustable pump. It has a meter that can accurately determine the water flow in the pipes and allows the US Water 410-CLBOOST to adjust the chlorine injection automatically. Of course, manual adjustment is also possible, but the unit can do most of the work for you if you’re unsure of the amount of chlorine that needs to be added.
2-Year Warranty
Both the injection pump and the chlorine tank have a warranty that lasts two years. While this might not seem like much, especially for a device of this size, it’s pretty decent coverage. Filtration systems usually don’t cover the tanks in their warranties, making this warranty more comprehensive than many other systems we’ve tested.
Easy Installation and Maintenance
Additionally, this unit is easy to install. All you need to do is hook up the chlorine tank and the pump to the water supply. Maintenance is also relatively easy. You just need to check the tank every now and then and ensure that it has enough chlorine. The manufacturer provides instructions on how much water and chlorine should be in the tank, but you’ll get the hang of it quickly.
Decent Tank Capacity
The US Water 410-CLBOOST tank can hold up to 15 gallons, less than half the capacity of the SpringWell. The lower capacity doesn’t make it an inferior product, but it does mean that the 410-CLBOOST is best suited for smaller homes. While the SpringWell unit is a chlorinator for 6-7 bathroom homes, the 410-CLBOOST is ideal for 3-5 bathroom homes.
- Easy to install, which saves you the cost of hiring a plumber
- The automatic chlorine adjustment makes this unit really easy to maintain
- The display is easy to navigate and use, and it allows you to customize the settings
- NSF certified to NSF/ANSI Standard 60, which means the safety of the chlorine has been independently lab-tested
- The tank size means the model is limited to homes with up to 5 bathrooms
3. J-PRO-22 Chlorine Injection Pump
- Capacity – 5 gallons
- Warranty – 1 year
The best thing about the J-PRO-22 is that it offers three different tank size options. This means it’s suitable for smaller homes and apartments and large homes with several bathrooms. Plus, it’s dual voltage, which gives it even more versatility. For this list, we tested the 5-gallon unit.
Key Features:
- 3 tank sizes: The J-PRO-22 model comes in several different sizes. You can choose a system with a 5-gallon tank, a 15-gallon tank, or a 35-gallon tank. The price will go up as the tank size increases, but the 15 and 35-gallon tanks are still cheaper than the other products on our list with the same capacity.
- Ideal for smaller homes: The 5-gallon model is an excellent option for small houses or vacation homes where people don’t need too much water. This unit provides enough power for 1 or 2 people and is very affordable.
- High flow rate and dual voltage: The J-PRO-22 can handle up to 50 (GPM) gallons per minute and 110 PSI of pressure. It’s also dual voltage, so it works on 110V and 220V power supplies.
- Compact design: If you choose the 5-gallon option, the smaller tank means that the unit doesn’t take up much space, which makes it an excellent option for cramped homes that can’t fit the larger models.
- Digital display: The digital display is also easy to navigate and allows you to adjust the chlorine dosage quickly if needed. We’re firm believers that all units should come with a digital display, as it makes maintenance so much easier. So, the J-PRO-22 scores high points in this area.
- Good chlorine options: With the J-PRO-22, you can also use regular household bleach, liquid pool chlorine, or even make your bleach with powdered calcium hypochlorite.
- Comes in different sizes so you can choose between a 5-gallon, 15-gallon, or 35-gallon tank. This means you can find an option that’s suitable for a home of any size
- Can handle a water flow of up to 50 GPM, which is even higher than the SpringWell model and means it’s suitable for large homes
- Dual voltage so it can be connected to both a 110V and a 220V power supply
- The 5-gallon tank needs to be frequently refilled, but there are larger tank options
What to Know About Chlorine Injection Systems
The three most important factors when picking out the right chlorine injector for your home are capacity, price, and warranty.
Capacity
The tank capacity affects the amount of chlorine an injector can hold. This doesn’t matter in terms of performance, but it does affect the frequency of maintenance since a smaller tank will need to be refilled much more often than a large one.
| Model | Chlorine capacity |
|---|---|
| SpringWell CIS | 35 gallons |
| US Water 410-CLBOOST | 15 gallons |
| J-PRO-22 | 5 gallons |
Price
As you can tell by our list, the larger chlorine injection units are around $1000, while a compact, budget unit is half the price. Regardless of which one you choose, all the products on our list are fairly priced for their features and functionalities.
| Model | Price |
|---|---|
| SpringWell CIS | $1,227.60 |
| US Water 410-CLBOOST | $1,195 |
| J-PRO-22 | $729 |
Warranty
When it comes to warranties, longer is better. Still, we made sure that all our recommended systems have coverage, so you don’t need to worry if something breaks. Getting a good warranty would be ideal, but we recommend finding the right unit for your household needs by prioritizing the products’ flow rate and capacity.
| Model | Warranty |
|---|---|
| SpringWell CIS | Lifetime warranty |
| US Water 410-CLBOOST | 2-year warranty |
| J-PRO-22 | 1-year warranty |
How Does a Chlorine Injector Work?
Chlorine injection systems are essentially plastic barrels full of chemicals.
The tank is connected to a pump, which is connected to a chemical injector and the water pipes. The pump has a meter that calculates the water flow (gallons per minute, GPM) and adds chlorine from the tank proportionally to the water passing through the pipes.
When the water passes through the chemical injector, it gets infused with chlorine.
Advantages of Chlorine Injection Systems
Chlorine treats the common contaminants found in drinking water, as well as iron bacteria, ferrous iron, and ferric iron, which are substances that are very commonly found in well water.
Outside of chlorine injection, the only other way to remove iron bacteria from your well water is to use a process called shock chlorination, which is a long and challenging procedure.
Chlorine is also very useful when it comes to removing pesticides and other dangerous chemicals from your drinking water.
Disadvantages of Chlorine Injection Systems
Chlorine tanks can’t function on their own—they’ll need an accompanying system to purify the water in your pipes. This means that aside from the price of the chlorine tank, you’ll also need to take into account the cost of the additional system when considering the price of chlorination for your home.
You can either get a whole-house reverse osmosis unit to get rid of the chlorine and make the water drinkable, or you can go with a carbon filter. Regardless of which you decide to go for, you’ll need to attach the units and make sure they’re working properly yourself.
You’ll also need to do frequent tests on the water to ensure that the chlorine levels are within a safe range. Thankfully, the smell and the yellowish coloring of chlorine in water are both easy to detect, so it’s easy to tell when something is wrong with your system.
However, small amounts of chlorine might not be all that noticeable in the water, so we recommend testing your water every week to ensure that the chlorine levels are where they should be.
Popular Questions and Answers
What is the cheapest chlorine injection system?
The most affordable chlorine injection system for your well is the J-PRO-22, which costs $729.
What is the average price of a chlorine injection system?
A whole-house chlorine injection unit costs between $1,000 and $3,000.
What does installing a chlorine injection system require?
The first thing that you’ll need to do is remove a section of the main water pipes in your basement. Then, use a few PVC pipes to attach the inception system to the water supply.
Mount the pump and the power supply box next to the section of pipe that you removed and place the chlorine barrel underneath. You can then bridge the gap between the pipes with PVC. You should place the chemical injector inside the PVC.
Once the injector is in the PVC and connected to the water pipes, you’ll need to connect the pump to the injector and the chlorine barrel. After that’s done, all you need to do is connect the pump to the power box, plug everything in, and turn on the switch.
We also recommend placing a shut-off valve on both ends of the water pipes since you never know when you’ll need to cut off the water supply in case something starts to leak or break.
Keep in mind that this is a simplified version of the installation process, and if you want to learn how to do it yourself, you’ll need to take a look at the user manual that comes with the chlorine injection system.
