Effective and fast water purifier
- The VIQUA E4-V disinfection system is durable and will disinfect virtually all bacteria, viruses and pathogens
- The Viqua E4-V takes just 1 or 2 seconds to destroy harmful bacteria, without the use of chlorine or other chemicals
- Class B devices are intended for use with water that is already deemed potable and safe
NSF Standard 55 Class B
Country of originCanada
The Viqua E4-V Water Purification System is one of the few UV filters certified to NSF standards. It offers chemical-free water treatment for flow rates up to 15.8GPM and is NSF Standard 55 Class B Certified. This unit is easy to install and service, is made in Canada, and addresses a broader range of pathogens than chlorine without changing the taste, odor, or pH of the water once filtered.
The VIQUA E4-V disinfection system is durable and will disinfect virtually all bacteria, viruses and pathogens. It comes with a one-year warranty on its UV lamps and monitors, a five-year warranty against manufacturer defects and a ten-year warranty on the water chamber. This system replaces the Sterilight SCV-600 and SCV-740 systems.
Most NSF certified UV systems are manufactured in Canada, with very few made in the US. Beware cheaper UV water systems sold in the US without certification as these are unlikely to have a UV light that offers any real efficacy against microbes. Even amongst those that are certified, very few are Class A certified, with most carrying the lesser, Class B, certification and costing anywhere from $400-$1500.
Class B devices are intended for use with water that is already deemed potable and safe. If you have a significant concern with microbial contaminants in your water, or are on untreated well water, however, you’ll likely want to go for a Class A certified UV filter. These can run you around $1200-$2000.
The Viqua E4-V takes just 1 or 2 seconds to destroy harmful bacteria, without the use of chlorine or other chemicals. The only things in contact with your water are safe and reliable 304 stainless steel and quartz glass.
One of the cons for all UV system is that they need to be installed close to a power outlet and require regular maintenance, including cleaning the quartz sleeve every 6-12 months and replacing it every 2 years. This is because a coating will form on the quartz sleeve over time due to minerals in the water and this coating reduces the amount of UV light reaching the water, thereby reducing performance. If the sleeve cannot be cleaned, it must be replaced.
The UV lamp should be replaced every year, which can get a bit expensive over time. Another con is that your water needs to meet certain standards for the UV system to work, including having minimal particulate matter and UV transmittance of 75% or higher.
As with all UV water purifiers, the bulb is constantly on, meaning that water standing in the system can become very hot, as can the pipes surrounding the unit. As such, it is best to run the tap to purge hot water if no water has flowed for a few hours or more. It’s also a good idea to avoid using plastic pipes near these types of unit as the heat and light can degrade the pipe. Instead, use u-shaped stainless steel connectors that will prevent most of the light from reaching PVC or PEX piping.
Viqua E4-V vs. Viqua SV8Q-PA vs. Viqua Pro10 vs. Pelican Water PUV-8 and Puv-16
The Viqua E4-V is a good option if you’re looking for a faster flow rate at a good price with Class B certification. It’s a little more expensive than the Viqua SV8Q-PA, however, which is also Class B certified but has a slightly slower flow rate (albeit perfectly suitable for the average household). If your water supply is already pretty good and you’re looking for extra assurance against microbial contamination, this one is a great option, especially for larger households or light commercial enterprises. Pelican Water PUV-16 offers a similar flow rate and Class B certification but is harder to track down and more expensive. If your water is untreated, go for the Viqua Pro10 as this carries Class A certification.