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frontpagebabgaly | Staff posted Jan 07, 2026 12:42 AM
frontpagebabgaly | Staff posted Jan 07, 2026 12:42 AM

SimPure Reverse Osmosis Under Sink Water Filter System (Alkaline or Near 0 TDS)

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$100

$199

49% off
Amazon
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SimPure Direct via Amazon has SimPure Reverse Osmosis Under Sink Water Filter System on sale listed below for $167.20 - 40% off when you visit the promo code page to activate (or apply promo code T1NEWYEAR at checkout) = $100.32. Shipping is free.

Thanks to Deal Hunter babgaly for sharing this deal.

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Editor's Notes

Written by citan359 | Staff
  • Rated 4.3 out of 5 stars based on over 1,300 Amazon customer reviews.
  • Please see the original post for additional details & give the forum comments a read for helpful discussion.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by babgaly | Staff
Product Info
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Deal Details
Product Info
Community Notes
About the Poster
SimPure Direct via Amazon has SimPure Reverse Osmosis Under Sink Water Filter System on sale listed below for $167.20 - 40% off when you visit the promo code page to activate (or apply promo code T1NEWYEAR at checkout) = $100.32. Shipping is free.

Thanks to Deal Hunter babgaly for sharing this deal.

Available:

Editor's Notes

Written by citan359 | Staff
  • Rated 4.3 out of 5 stars based on over 1,300 Amazon customer reviews.
  • Please see the original post for additional details & give the forum comments a read for helpful discussion.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by babgaly | Staff

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Top Comments

fieldcar
641 Posts
360 Reputation
Reverse osmosis (RO) systems remove nearly all dissolved minerals from water, including beneficial ones like calcium and magnesium. This results in water that is very pure but often tastes flat or bland due to the lack of minerals. Additionally, the absence of minerals can make the water slightly acidic, with a pH typically between 5.0 and 6.5.
To improve taste and balance pH, an alkaline filter is added as a final stage in some RO systems. This filter reintroduces essential minerals such as calcium, magnesium, and potassium into the water. Doing so raises the pH to a more neutral or slightly alkaline level (typically 7.0–8.5), enhances flavor, and gives the water a smoother mouthfeel.
In short, the alkaline filter prevents flat water by restoring minerals removed during RO filtration, making the water more pleasant to drink and less acidic.
pwnking
121 Posts
54 Reputation
Reverse osmosis tips. Only use dow filmtec membranes. Everything else is worse and not worth savinga few bucks. Amazon sells the film tecs for 30.00. Ispring is a decent starter brand for kits. Tank and the autoshut off valve are the weakest link. Might switch them out ASAP. Bulk Reef Supply is your best friend for RO. They dont sell garbage. Pumps are silly IMO. I get 98-99% rejection without it. If you do get a pump, this one is crap. Get a flowtec or shurflo. The pressure tank, is most likely the first thing that breaks though, and it's very hard to get an American tank. USA Water Systems used to sell American tanks, but now it seems you have to buy the whole 500.00 us system to get the us tank. Pretty solid warranty though.
NaPra
1871 Posts
2611 Reputation
Just wanted to mention that alkaline water "benefits" are bunch of nonsense: https://www.mayoclinic.org/health...q-20058029

181 Comments

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Jan 12, 2026 03:33 PM
245 Posts
Joined Feb 2010
LLLosingitJan 12, 2026 03:33 PM
245 Posts
Quote from ben_r_ :
Which RO system has clear canister filters?
The good ones lol, I filter hundreds of gallons a month for my reef aquarium systems so I use BRS https://www.bulkreefsupply.com/bu...stems.html or Air Water Ice, https://airwaterice.com/collectio...ter-system
Jan 12, 2026 03:35 PM
574 Posts
Joined Sep 2016
crayboiJan 12, 2026 03:35 PM
574 Posts
Lol @ the comment section, very strongly opinionated folks.

Here's a free water test I've used for 12 years or so for a good starting point. Not by all means has everything but it's free. https://aquascience.net/free-water-test/

I've installed a standard 10" tank Ispring kit 14 years ago for my parents, and eventually added the alkaline stage for taste only. Water was having a flat tasting and was contributing to stomach pain in myself. Water improvement imho.

In my own home ( well water) I did a more complete water test and built a whole home filter system based on the contaminants. Which were low manganese, high hardness and some TDS.

Spin down, 20" particulate, 20" carbon, and fine mesh softener.

So do a water test and figure out what you need. If you don't want to do the research throw your report in AI chat or get a free consultation with a water company and do the work your self. Plenty of online resources on how to maintenance and lots of places to buy bulk filters for cheap if it's a standard size.
2
Jan 12, 2026 03:41 PM
131 Posts
Joined Oct 2013
Velo78Jan 12, 2026 03:41 PM
131 Posts
my smooth brain interpreted this as 0 Trump Derangement Syndrome results

don't @ me....
Jan 12, 2026 04:01 PM
516 Posts
Joined Feb 2005
edwoodcaJan 12, 2026 04:01 PM
516 Posts
Quote from Artc8888 :
PLEASE Note the replacement filter will cost you $63 (set) + RO filter ($52)..... also, i prefer to have a clear canister, where I can visually monitor the degradation of the filter....
I visually monitor my degradation each morning in the mirror.
Wait... never mind. I need more caffeine before I start posting...
Pro
Jan 12, 2026 05:37 PM
997 Posts
Joined Mar 2012
txpyro
Pro
Jan 12, 2026 05:37 PM
997 Posts
can i use this in my RV
Jan 12, 2026 06:10 PM
140 Posts
Joined Apr 2019
NySaverJan 12, 2026 06:10 PM
140 Posts
Quote from FantasticArm1685 :
I got rid of my RO and put in a simple filter.
Me too. Clearly Filter look it up everybody

RO water is "dead". Asian countries of energy focused people do not agree with consuming this.
Last edited by NySaver January 12, 2026 at 11:15 AM.
Jan 12, 2026 07:36 PM
150 Posts
Joined Jan 2010
tdm850Jan 12, 2026 07:36 PM
150 Posts
Quote from lacydill7@yahoo :
hijacking's this post because I got a used high end RO system with my used water softener, it has 3 filter s like this but i have no idea how to take care of it how often to change filters etc ? A friend of mine changed them once for me last year , i have had it 6 years, water tastes great idk lol any advice?
Buy a cheap TDS meter online and check the readings on both RO water and the tap water. For example, you get 50 PPM from RO water and 500 PPM from the tap water:

(500 - 50) / 500 = 90%.

90% is your RO rejection rate, which is good. I would say anything above 80% is acceptable for home RO system.

Make sure you change the pre-filters and post-filters once a yeart so RO membrane doesn't get etching out by chlorine in the tap water. And you are golden! There is no need to change RO membrane unless you see the rejection rate drops or the production drops.

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Jan 12, 2026 07:39 PM
150 Posts
Joined Jan 2010
tdm850Jan 12, 2026 07:39 PM
150 Posts
Quote from SkinnyyTurkey :
Can you please recommend a tankless system?
Waterdrop seems to be pretty reliable.

But tankless systems have their own issues as well. Please look up "TDS Creep". It's a lot to explain and I'm not capable of typing it out. Sorry!
Jan 12, 2026 07:46 PM
150 Posts
Joined Jan 2010
tdm850Jan 12, 2026 07:46 PM
150 Posts
Quote from ReaksOP :
is this hard to setup?
The hardest part would be drilling a hole on the countertop to install the faucet. If you are OK doing it, the rest should be easy.
Jan 12, 2026 08:38 PM
15 Posts
Joined Oct 2010
PerilousPalJan 12, 2026 08:38 PM
15 Posts
Quote from pn88 :
Deal is for tank options. Tankless is better, specially if placing under sink
Tankless RO? You want to stand there for 10 minutes waiting for a glass of water?
Jan 12, 2026 08:42 PM
1,046 Posts
Joined Jan 2020
AmusedScent305Jan 12, 2026 08:42 PM
1,046 Posts
Quote from poohbie :
This is less expensive than replacement RO membrane and filters for my current system from Watts Premier.Is the pump only for those with low water pressure? (i.e. will the system still work when the pump eventually fails?)
The pump is meant to ensure optimal pressure for forcing water through the RO membrane to generate the ratio of waste:pure water claimed. Household pressure should be around 60psi, but if your pipes are old and full of scale or far from your point of origin, your pressure may drop enough that the pump is necessary. Only way to know for sure that you need it is to test your pressure at the install point.

If you don't need the boost pump, just don't hook it up. But you could potentially install a mechanical permeate pump to decrease the waste:pure ratio without electricity.

Also, keep in mind that pure RO water is actually slightly acidic, so you should not run it through any metallic lines once it is filtered: it can leach the metals and eventually cause the pipe walls to degrade and leak.
Jan 12, 2026 08:51 PM
410 Posts
Joined Apr 2017
VicdagodJan 12, 2026 08:51 PM
410 Posts
Quote from LovelyGoat9932 :
This is 'Murica, where people shoved slices of raw potato into their socks to ward off Covid while refusing the vaccines available.About 30-40% of the country gets hilariously awful (and often dangerous) medical advice from Faceplant Mom Groups. Common sense is not even remotely common any longer.
Dont forget to get your covid boosters lolll
1
Jan 12, 2026 08:54 PM
410 Posts
Joined Apr 2017
VicdagodJan 12, 2026 08:54 PM
410 Posts
Quote from darksiderising :
Carnivorous plants are carnivorous because they live in nutrient depleted boggy soils and acquire nutrients from the insects they trap and dissolve in the various mechanisms different genera and species employ.
Damn! You got him with this! Teach!!!
Jan 12, 2026 08:59 PM
410 Posts
Joined Apr 2017
VicdagodJan 12, 2026 08:59 PM
410 Posts
Quote from lacydill7@yahoo :
wondering this myself? I have one of these that I absolutely love but am never sure if amd when i should replace my filters we love it so much we got our new refrigerator without water
See post above where its states clear canisters will develop algae in presence of sunlight. So maybe clear isnt a good idea.

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Jan 12, 2026 09:04 PM
410 Posts
Joined Apr 2017
VicdagodJan 12, 2026 09:04 PM
410 Posts
Quote from SKV4m :
Never knew RO water was controversial
It absolutely is.

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