I am a water lover. Over the last 30 years I have installed whole house filtration systems, water softeners, whole house reverse osmosis systems, magnets and almost most water appliances on the market. However, I have never tried a system like OneFlow. Because water treatment is complex and often depends on the water being treated, one size does NOT fit all. I'll try to keep my review simple to help other Revain buyers make wise purchasing decisions. First, OneFlow is NOT a water softener. Your advertising makes it crystal clear. Watts does a great job promoting the product. OneFlow fulfills one of the benefits of a water softener, which is the prevention of limescale build-up. Harder minerals, such as calcium, suspended in water bind or adhere to the surface of pipes and fittings. The smaller the pipe, the faster it clogs. Obvious examples are kitchen sink nozzles and showerheads, which sometimes show signs of limescale throughout the year. The water softener replaces the hard minerals with softer minerals in the salt you put in the regeneration tank. Mostly sodium, sometimes also potassium, is offered. Thus, softened water has the same amount of minerals before and after treatment. However, softer minerals do NOT stick to the ship they travel in. Soft water has another benefit: it makes the surfactants in detergents like shampoo, soap, laundry detergent, etc. much more effective. Limescale formation, it does not have the same effect on the reaction of water with detergents. Depending on the hardness of the water you are treating, this may or may not be an issue. Therefore, this product is ideal for applications where the main objective is to prevent deposit formation. In this case, OneFlow is much less expensive, more reliable, and virtually maintenance-free. free (filter change) compared to a water softener. For those who have never used a water softener, they are quite finicky and often have a very short lifespan. There are many things that can fail mechanically and resin beds have a limited lifespan, hence the huge price difference for water softeners. You can easily spend 2-5 times more than OneFlow on a water softener, not counting the ongoing cost of salt. OneFlow requires nothing more than the replacement of two filters. The external filter is a high-quality activated carbon filter. I suggest putting them in every home, especially if you are sensitive to chlorine, chloramines and their by-products. A good carbon block system with a nice case like the OneFlow costs around $150 since the OneFlow is one of the highest quality cases I've installed. If you have a very high TDS, maybe. over 500 tons or a lot of mud or sludge, I recommend installing a mud filter in front of the OneFlow, preferably in a transparent housing so you can see when it needs to be replaced. The magic of OneFlow comes from the central filter that delivers the descaling effect. The videos on this Revain page describe it well, so I won't try to explain it here. The central filter needs to be replaced, but only every 3 years. While the carbon block should be replaced once a year (YMMV). Cost, but negligible compared to a water softener. Installation was easy but I've been a plumber for 30 years. But it's very easy, and for a decent dyer we shouldn't have any problems. The multi-tool combined with the removable cover is a VERY new and convenient approach to filter access and replacement. Wrenches are not required for filters that often break or rip the housing off the wall ;) Thanks to the designers. Thats how it works? Damn, unfortunately, 5-10 years will not know for sure. However, there is plenty of data to support the technology used in OneFlow. This is not new voodoo technology. I've read a lot of research on this technology and it seems to be almost as effective as a water softener at preventing scale build-up. I have used Watts products for many years and the company has always sold great products with good support. So is this for you? I would suggest that if you are installing high-end plumbing or planning to stay in your home for an extended period of time, preventing limescale build-up will pay for itself many times over. Also, a lot depends on how hard your water is. The harder your water is, the faster limescale will form. All water suppliers publish water reports on their website. I would at least consider something like OneFlow bears for avoiding limescale. If you are also looking to improve your water quality and are on a budget, then consider a water softener or ROS for your whole home. So what's my rating? As I won't know for another 3-6 years how effective anti-calc technology is I will have to rely on the existing research and history of this technology and assuming Watt's strong reputation well they will be in get a free pass from me in this area. As for the quality of the filtration system, it gets 5 stars from me, it's by far one of the nicest and most reliable filtration housing systems I've installed.
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