DanZemke Posted May 30, 2021 Report Share Posted May 30, 2021 The idea seems to be that a TAC filter could be a substitute for a water softener and require much less attention (salt replacement and back-flushing). That sounds attractive to me. But one recent review of a TAC filter on Amazon gives me more than a pause, it seems to disqualify a TAC filter as substitute for a traditional water softener. Here's an example of a TAC filter from a well-known name: https://www.amazon.com/gp/product/B01H273O4M/ref=ppx_yo_dt_b_asin_title_o04_s01?ie=UTF8&psc=1&pldnSite=1#customerReviews And here is the first sentence of a review that caused me to suspect, that a TAC filter is not for my RV: Reviewed in the United States on April 30, 2021 Verified Purchase Installed it and still had huge scaling problems in all my appliances and my bathroom faucets. Called Watts customer service and they explained that it doesn't prevent scaling anywhere where water sits and evaporates, only inside pipes. ------------------- Anyone have any direct experience with a TAC filter in an RV? Quote Volvo 770, New Horizons Majestic and an upcoming Smart car Link to comment Share on other sites More sharing options...
Fulltimer51 Posted May 31, 2021 Report Share Posted May 31, 2021 (edited) I have been considering this product as well. Most filters work great when new, I wonder how long the positive affects will last on this one. Edited May 31, 2021 by Fulltimer51 Quote George2011 F350 6.7PSD CC 4X4 DRW Lariate2015 Mobile Suites 41 RSSB4 5th Wheel Link to comment Share on other sites More sharing options...
DanZemke Posted May 31, 2021 Author Report Share Posted May 31, 2021 According to Watts' ad copy: "Virtually maintenance free for up to 3 years". To me, a couple of years between changes sounds great. I vaguely recall folks replacing metal pipes in a sticks and bricks because of insufficient water flow. But, I can't recall anyone replacing their plex lines in an RV because of scale buildup. Have any of you on this forum had a problem with scale buildup in your plex tubing? Quote Volvo 770, New Horizons Majestic and an upcoming Smart car Link to comment Share on other sites More sharing options...
Ray,IN Posted May 31, 2021 Report Share Posted May 31, 2021 (edited) I researched this type "filter" although a different brand. This explains how it functions and explains the evaporation comment: https://www.e-tankless.com/how-TAC-works.php The minerals are not removed from water by this unit, the form is altered. Edited May 31, 2021 by Ray,IN Quote 2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG retired;Good Sam Life member,FMCA ." And so, my fellow Americans: ask not what your country can do for you--ask what you can do for your country. John F. Kennedy 20 Jan 1961 Link to comment Share on other sites More sharing options...
docj Posted May 31, 2021 Report Share Posted May 31, 2021 (edited) I installed one of the Watts units in my RV two months ago. We winter in a hard water area of south TX and my 10,000 grain water softener didn't go more than a couple of weeks before needing recharging (we do have a washer/dryer onboard). We definitely do get white "gunk" inside our faucets in the valves and the strainers plus I know there are deposits inside the water heater despite my regularly replacing the anode. Installation was straightforward and then the question was "is it doing anything?" Since it doesn't actually remove the calcium and magnesium from the water you can't use test strips to measure the effectiveness. However, I did notice one surprising indicator of effectiveness. We use bone china coffee cups every morning and after a week or two of use they would always develop brown stains on the inside despite the fact we washed them every day. The stain could be bleached away but normal scrubbing wouldn't remove it. After a couple of weeks I noticed that the cups were no longer developing those stains. My assumption of what was happening was that the stain was in scale that was being deposited inside the cups and the de-scaler was preventing it from happening. That gave me a way to see if the 3-year life claim is realistic. As long as the cups aren't stained then the system must be working. As for the break-in period, I had to clean the screens on our faucets a couple of times in the first several months, as the instructions warned would be the case, but that wasn't a big deal. I'm pretty sure that the flow through my Moen kitchen faucet has now improved a bit. It has a flow restrictor that was almost annoying in its effectiveness, but I've now measured the flow rate and it appears to be a bit higher than it has been. I attribute this to a "cleaning" of the the passages in the faucet head. Edited May 31, 2021 by docj Quote Sandie & Joel 2000 40' Beaver Patriot Thunder Princeton--425 HP/1550 ft-lbs CAT C-12 2014 Honda CR-V AWD EX-L with ReadyBrute tow bar/brake systemWiFiRanger Ambassador Follow our adventures on Facebook at Weiss Travels Link to comment Share on other sites More sharing options...
DanZemke Posted June 5, 2021 Author Report Share Posted June 5, 2021 Joel, That was very informative (as usual). I have a 16,000 gain water softener which I have not used yet. And I too have an on-board washer. But there's only 1 of me, so the frequency of back-flushing and salt replacement will be less. I also have a 40lb bag of Potassium Chloride which I'm curious about. So although, I'm still curious about TAC filters, since I already have a water softener, the benefits don't seem large enough (for me) to change yet. I may end up with a TAC filter for moderate to soft water and only use my water softener where the water is very hard (I do have a test kit). Thank you very much! Quote Volvo 770, New Horizons Majestic and an upcoming Smart car Link to comment Share on other sites More sharing options...
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