YARNA Capacitive Electronic Water Descaler System - Alternative Water Softener Salt Free for Whole House, Reduces the effects of Limescale [CWD48, Max 4" Pipe]

Great little device. Easy to install. It is installed on 1" coper line. The water hardness level in my area is 28-30gpg which is extremely hard water. We have a water softener that successfully softens the water but there is a big problem with the amount of salt being introduced to our treated water. So now my water softener is set to a lower number and we get about 7gpg hardness after it (compared to almost none before). Because of the Yarna Descaler the current "harder" water is more manageable now. No more hard white deposits on bathroom or kitchen faucets. The water droplets still leave white powder behind if let dry, but this powder wipes out easy. When I was looking for the descaler I wasn't able to find max flow characteristics for most of the devices, so I opted for the the most powerful device that works with biggest pipe diameter. Maybe it is an overkill for my setup but it works and I'm happy with the result.

Bought and installed this per instructions in June 2021. Very easy install. Our well water here near Oshawa, Ontario is very hard, causing extreme deposits on glassware and shower doors. For reference, our original 15-year old salt-based softener works very well, eliminating almost all mineral deposits; it costs about $5-10 in salt a month. Over the next 9 months, ie until March 2022, we ran 4 very controlled A-B comparison cycles between the Yarna and our old salt softener. The Yarna had precisely zero effect. Let me be clear: that's 4 periods with the Yarna, and 4 periods with the salt system. Very thankful Yarna offers a no-questions-asked 1-yr full money-back policy. I'm sure it works for some houses, btw, and the key is extensive testing, so give it a shot.

OK ... I'll be up front - I thought these things were a scam. But now I'm eating crow ... After just a week the scale in the dishwasher is no more. I had to clean it thoroughly first so that I could see if the device made a difference. But it does! It took about a week to really see the difference in the hot water. Our problem is limestone - calcium - and perhaps that's why it was so effective. I could see the science with that. Kettles still scale up, but MUCH less and it's softer scale that can be easily wiped off. The water is NOT softer of course, but that's not the issue. Would I recommend this? Well I've tried every other none salt based process and overall this will be the most economical and effective - if it lasts. Give it a go, give it a few weeks to try, clean up first, and then see for yourself. You can always return it! Only four stars because of the price. The parts in this device can be purchased for under a hundred bucks if you know where to look. But it seems to be well made and kudos to the company for getting it together! And the money you will save on your appliances will more than cover the cost over time. PS: I should have taken some "before" pics! The inside was thoroughly coated in scale before we installed this and about 70% of it disappeared in a week after installing the device. I then cleaned the dishwasher with citric acid to remove the rest. The pic you see is after three washes. Before the device, the stainless would be grey with calcium deposits after three washes. Now it is not. I have now ordered another unit for another water system that is hard water but NOT strictly limestone. I wonder if it will work as well ....

I have no idea how this thing actually works. Easy to install, make sure you got a plug near by. Acts as a night light too lol So surprised how my hair was silky after installing this. I don't get it?! My laundry is whiter, cleaner? Come on!? The taste of city chlorine is not there. I don't buy water bottles anymore and the ones that I did have, I use them to store more water to let the bleach out for my indoor plants, just in case this is my imagination LOL. Seriously though, how the heck does it affect the taste of water?

My 4th and hopefully final descaler, purchased the Yarna CWD48 for just 100$ more than than the residential model, just from experience Phoenix residents need commercial level descalers that can handle the Phoenix water 900ppm irrigating at 50gpm. Pros: Fastest install ever, thick copper bands wind quick, outdoor waterproof , so small can put anywhere, live oscilloscope display, (I don't have to use my own oscilloscope to check status of my descaler any more. Treats up to 4" pipe, 1.2 miles, that's industrial grade , it will have no problem handling 900ppm at 50gpg I have been using electronic descalers for the past 10yrs to reduce amount of mineral build up in the kitchen and bathrooms, to make cleaning easy, and less frequent, no ring around the toilet bowl, any calcium build up on plastic shower heads wipes of with a sponge once a month or every other month. Added bonuses: my lawn irrigation drip system and sprinklers have very little build up and require little to no maintenance cleaning/changing heads, Haven't changed a drip or sprinkler head since I moved in 4yrs ago, which is rare in phoenix for drip systems have about 20 drip heads running all year and 20 sprinklers with K Rain (screw on) rotary heads. My misting system requires very little maintenance with a occasional cleaning of a few heads during the year, for a system of 40 misters with 0.3mm orifice this is unheard of in phoenix. This is my 4th electronic descaler : At first I didn't understand the importance for testing gpg/ppm which in Phoenix uses well water in the summer goes as high as 900ppm /52gpg drops to 500-600 in winter when it uses surface water. So Phoenix area residents require a descaler that will go up to at least 60gpg or 1000ppm, typical residential models are not designed for use in phoenix especially when you want to use for irrigation system which is up to 50gpm at 850ppm, you need to buy a industrial/commercial descaler or note the gpm and gpg rating if buying a residental My 1st descaler DIY PCB descaler, square wave generator - noticed enough difference that convinced me descalers do work Cons: low power 12-18Volts ,50 windings, weak inductance, constant frequency pros :great starter model for 20$ Scale Blaster residential model SB-70 - noticed a bigger difference. Pros: good product for 75$ used, would work well in northern cities Cons: had to mount indoors and runs signal wire out through wall required a lot of windings, only up to 19gpg, Industrial/commercial (SB Max older version which treats up to 100gpg) - worked excellent, great product. very expensive retail 999$ found used for 399$ ,very large had to install inside the house all though it is rated for outdoor use I couldn't find the information on heat tolerance levels and customer service via phone didn't or wouldn't give that information cause the model was discontinued, long summers of 120F create internal temps of southern exposed metal machine towards 160F I assumed that would shorten the life significantly. so I ran the signal wire through the wall and had to wrap the wire 210 windings around 3/4inch incoming copper, which was really difficult, would still be using it but after 4yrs of use the wave generator became very loud, since it was inside the house it was disrupting sleep at night, so I gave it away. (Newer model of SB-Max only treats up to 40gpg can't use in Phoenix)