Item 1 of 4
Item 1 of 4
expiredbabgaly | Staff posted Jan 7, 2026 12:42 AM
SimPure Reverse Osmosis Under Sink Water Filter System (Alkaline or Near 0 TDS)
$100
$199
49% off
+ Free Shippingat Amazon
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+ Free Shippingat AmazonDeal Details
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:
Thanks to Deal Hunter babgaly for sharing this deal.
Available:
- Alkaline Water (T1-100ALK) $100.32
- Near 0 TDS Water (T1-100) $100.32
Editor's Notes
Written by citan359 | Staff- Please see the original post for additional details & give the forum comments a read for helpful discussion.
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Community Notes
About the Poster
Deal Details
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:
Thanks to Deal Hunter babgaly for sharing this deal.
Available:
- Alkaline Water (T1-100ALK) $100.32
- Near 0 TDS Water (T1-100) $100.32
Editor's Notes
Written by citan359 | Staff- 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.
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Top Comments
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.
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182 Comments
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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.
(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.
The only thing I would check the ASV but you already replaced it.
You could shutoff the valve on the top of the storage tank and turn on the drinking water faucet and see how much it's coming out. It's the actual RO permeate flow rate. If it's dripping, then you may need a new membrane as it has been scaled pretty bad, the permeate flow is drastically reduced while it keeps sending reject brine to the drain.
I had a tank system for many years. The filter goes into the housing unit, where as this one the filter cannot be separated from the housing. My guess is that is why the filter is expensive. On the plus side, the housing unit won't crack and flood your floor.
If you ever change the filter that goes into the housing, you will see how nasty it is. Surprisingly nasty. I live in a metropolitan. We suppose to be able to drink out of the faucet.
If you boil water in a glass kettle, overtime you will see a layer of white residue. This does not happen with RO water.
If this RO filter last me 5 years, I would be a happy man. My last RO unit lasted 8 years before the filter housing cracked.
PS: the only purpose for the pump is to help move the water through the RO membrane faster, thus reducing water waste. Without the pump, it's wasting up to 3 gal per 1 RO gallon.
Why do none of these advertise hooking up to a refrigerator? I did with mine, and drilled a small hole in the wall to get to the bathroom sink for the waste drain. Much more useful than an extra faucet for your sink.
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Source: I have gout. Anyone who has knows the pain that forced me to read scientific journals. Anywhere will alkaline water get you there? Not sure. I don't think alkaline water is necessary, many of us live in hard water areas. We don't drink tap water but our ice machine does, and we cook with it. If there are white mineral stains all over your water fixtures you don't need alkaline water. https://pmc.ncbi.nlm.ni
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Your comment demonstrates a profound lack of knowledge on this topic. Alkaline water is not a standardized term that means a specific PH range. I can make Alkaline water of various PH and it's all still considered "Alkaline water", as long as the PH is greater than 7. Alkaline water is by definition, a water imbued with alkaline properties - with the ability to neutralize acidity. I understand the chemistry just fine, as such I wouldn't make an erroneous statement that alkaline water is definitionally a specific "lightly Alkaline" PH range. Yup, baking soda is an easy way to make water alkaline.
You are simply barking up the wrong tree.
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