Where do I get replacement filters and which ones do you need to change and when?For this Alkaline Reverse Osmosis Water Filtration System RCC7AK, it is recommended to replace: Why do Reverse Osmosis water systems waste water?To start with, let's make it clear: ALL Reverse Osmosis units produce wastewater. With the modern technique, the waster water ratio can be reduced but not eliminated. Here is how the RO system works. The RO water system will split the water stream into two flows; one is purified water, and another is wastewater. There is a flow restrictor on the wastewater line, which will slow down the water flow. Hence, it will create enough water pressure to force the H2O to pass through the semipermeable membrane to remove dissolved solids. Is there a difference between this iSpring brand and other brands? Why is the price gap so dramatic?Since 2005, iSpring has brought an average Reverse Osmosis filter price down from the $700 range. We bypass middlemen, sell directly online, cut advertising and live up with customer reviews by continuous improvements. We are doing what we want to do: make clean water available and affordable to more people. We believe in long-term value. I followed the instructions and my water is coming out cloudy. What can I do to correct this?The water is cloudy for the first gallon. Please follow the instructions to flush the Reverse Osmosis water filtration system until the water turns clear. If you followed the manual and it's still cloudy, please do not hesitate to contact us at (678) 261-7611 M-F 9-5 EST. Do the filers of RO filter retain / put back fluoride in the water after filtration?This Reverse Osmosis filtration system will remove fluoride and does not put it back into the filtered water. How does the alkaline filter work? It says it \"gives back\" minerals such as calcium, but my water has no calcium to begin (already softened).The Reverse Osmosis drinking water filter system removes over 1,000 contaminants from the water, including some healthy minerals. Then the final stage, Alkaline Filter, contains calcite (calcium carbonate), mineral stones, and Corosex (magnesium oxide), which will add calcium and magnesium to the water (30-60 mg/l is added). What should I do with the under sink reverse osmosis system when going out of town?When you leave for an extended period, you will want to shut off the water supply to the RO water purifier and empty the tank. To do this, close the knob on the feed water adapter, and open the faucet until it stops running. This will signify that the tank is empty. If you are gone for more than a week, you will also want to remove the RO membrane and store it in a damp Ziploc bag in the refrigerator. What if there is zero output water from the RO faucet1) The water supply is closed. Open the water supply to the domestic RO filter system so the valve aligns with the red tubing. When installing this Reverse Osmosis water purifier, should the water source come through the Reverse Osmosis machine or directly from the raw water source?When installing a Reverse Osmosis water filter under sink where the water source is very hard, it is always recommended to install this unit after the water softener to prolong the membrane's life. So the best thing to do before installation is to get your water tested. You can read how to test your water here. If you do not have a water softener, you can simply install the RO machine directly to your raw water source. Although it may reduce the life of the membrane, it will still work. Can I install a water filtration system myself?Yes, a little basic plumbing knowledge is needed. The Reverse Osmosis drinking water system is designed for do-it-yourself installation. All necessary parts for installation are included, backed by clear, well-organized written instructions, instructional videos, and access to iSpring unparalleled technical support. What is the micron rating or smallest particles it removes? I'm concerned about microplastics that can be 1.0 micron.The membrane of this RO filtration system is 0.0001 micron, small enough to filter out most microplastics, but the system is not designed to disinfect your water or treat it for microorganisms. If your water contains microplastics or other microorganisms, we recommend treating this issue directly at the source instead before using any water filters. Or you can choose using RCC7AK-UV instead, which includes the Ultraviolet Filter that can treat unreliable water sources like lakes and streams. Why do I need to use a pressure tank?The expansion tank provides water pressure to your faucet. Traditional under sink RO water filtration systems usually need a tank to store pressurized water to meet the immediate water needs when you turn on the faucet. Secondly, the storage tank will also help with the system's operation. The RO tank will keep the pressure for the reverse osmosis system and automatically turn on / off the system by monitoring the waterline pressure. Why every fitting leak after installation?You have to push the tubing with a fair amount of force to get it to sit all the way. Usually, you have to insert the tubing about 1/2" into the push-in fitting. Secure it with the clip. If the leaking issue is still unfixed, please do not hesitate to contact us at (678) 261-7611 M-F 9-5 EST. Can this filter be installed on my refrigerator without the faucet?Yes, absolutely. The Reverse Osmosis water purification system can be used without the faucet. Where is this system made?The RO filtration machines without a pump are made in Taiwan, machines with pump are made in China. How much water can this system produce per day?This under sink RO system can filter up to 75 gallons per day. The storage tank can hold 3.2 gallons. If you use more than 3.2 gallons at one time, the water flow will be slowed down, but it can still come out. How many times does this under sink system need to be flushed before it's ready to drink from?3 times. The first flush is after installing the first 3 stages (the Active Carbon needs to be flushed first to avoid large particles going to the RO membrane) until the water is clean. The 2nd flush is after the RO membrane installation, which will get rid of the protector in the membrane and others for at least 15 mins apart from the tank. The 3rd flush is after the tank has been filled up completely. It will take 1.5 to 2.5 hours, depending on your water condition. After the tank is full, open the faucet and drain the tank completely. Is it BPA-free?Yes! All our products are BPA-free. Please don't hesitate to let us know if you have additional questions. Stay safe! Should I turn this Reverse Osmosis system for the kitchen sink off at night?No, this under sink Reverse Osmosis filter will shut off automatically once the storage tank is full. Does it remove PCBs?Yes, the reverse osmosis membrane removes 97% of PCBs. Can this residential RO water system be hooked up to an existing faucet rather than the one that comes with it?We strongly suggest using the included RO faucet but if your existing faucet can accommodate a 1/4" quick connect (push-in) fittings, this is possible. Please note that the flow may not be as strong if your existing faucet has a wide spout. How long is the faucet line?You will receive a 5 feet tubing for installing the faucet. Can this RO filtration be used for instant both hot and cold water?As long as the water for the instant heater is filtered before it gets heated, it won't be a problem. What we want to avoid is putting the hot water directly into the RO membrane. Can this RO water machine reduce mercury?For mercury specifically this RO system water purifier has a rejection rate of 96-98%. How do I make my reverse osmosis water alkaline?The reverse osmosis filtration system removes over 1,000 contaminants from the water, which includes some healthy minerals. You can purchase iSpring RCC7AK to make your RO water alkaline. The final stage of RCC7AK, Alkaline Filter, contains calcite (calcium carbonate), mineral balls and Corosex (magnesium oxide), which will add calcium and magnesium to the water (30-60 mg/l is added). Is the reverse osmosis water filter system NSF Certified?The innovative RO system under sink RCC7AK is certified to NSF/ANSI 58 for TDS reduction (58 for reverse osmosis). |
iSpring RCC7AK 6-Stage Reverse Osmosis System w/ Alkaline Filter, 75 GPD, NSF Certified
About this item
- Certified to NSF/ANSI 58, 6-Stage Alkaline Remineralization Layered Filtration - Exclusively designed to restore the natural alkalinity and mineral balance of water; this reliable and ultra-safe Reverse Osmosis (RO) water filtration system converts your water into clean, pure and healthy drinking water by removing up to 99% of over 1,000 harmful contaminants like PFAS, chlorine, fluoride, lead (removes up to 98%), arsenic, asbestos, calcium, sodium and more.
- GREAT-TASTING MINERAL WATER - A standard 5 stage RO system produces slightly acidic water with a pH of 7. 0 or below because the RO membrane removes not only harmful pollutants but also a few helpful minerals. The iSpring RCC7AK Reverse Osmosis water filter includes an additional 6th stage - an Alkaline Remineralization filter which restores healthy minerals and produces a balanced alkalinity, which gives your water a more natural taste than regular 5 stage RO water filter.
- LOW MAINTENANCE - Transparent 1st stage housing for easy visual inspection. Three extra long life pre-filters to remove large contaminants and protect RO membrane. Ultra fine (RO) filter to remove contaminants down to 0. 0001 microns; fine GAC filter to provide final polishing to the purified water and (AK) filter to finally restore just the right proportion of healthy minerals and a natural alkaline balance. The end result is great-tasting bottled-water quality.
- EASY TO INSTALL & NO LEAKS - The water purifier is designed for do-it-yourself installation and all necessary parts for installation are included. Backed by clear installation manual, instructional videos, and access to life-time technical support. The entire alkaline water filter fits nicely under a kitchen sink. For leak-free installation, simply push tubing ½ inch deep into quick-fitting connectors and lock; no threading pipes needed.
- 100% SATISFIED CUSTOMERS - RCC7AK from America’s favorite brand of under sink water filter is the highly rated reverse osmosis systems. Comes with 1-year limited manufacturer warranty upon registration and lifetime personalized support from GA, USA, combined with premium quality components, this water filter is to deliver endless bottled quality drinking water right in your home for many years to come, eliminating plastic waste.
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iSpring RCC7AK 6-Stage Reverse Osmosis System w/ Alkaline Filter, 75 GPD, NSF Certified
$229.99
- Availability: In Stock
- Model: RCC7AK
- Manufacturer: iSpring
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![4 out of 5 Stars!](http://123filter-com.b-cdn.net/ac/extensions/123filter/storefront/view/123filter/image/stars_4.png)
2015-01-30
I just installed the "upgraded version" of this 6-stage RO unit. So far, I am mostly satisfied with my purchase. My municipal water supply is hard, and contains chlorine, fluoride, haloacetic acid (54 ppb) and trihalomethanes (74 ppb). I already have a Pelican whole house GAC water filtration system, which contains coconut carbon and a large 5 micron pre-filter. This does wonders for chlorine-induced dry skin and also has the added benefit of removing the previous mentioned contaminants (with the exception of flouride). Hopefully, it will also reduce the frequency of having to replace some of the other stages of filtration for this RO unit.
The package arrived promptly, and was packed well. The first thing I did was make sure I received all the "upgraded" items. I probably wouldn't have been concerned otherwise, but the manual stated "version 2014 - 3" -- so I wanted to verify I received all the goods. Installation was fairly straight forward, and the manual was sufficient on its own. There are plenty of pictures and warning paragraphs to keep you from going astray. The only questionable item was the lack of instructions for the new style faucet. The arrangement of washers took me by surprise, but I think I figured it out correctly. Now, I will list a series of pros and cons from my observations.
PROs
1. Cost:
RO systems have been considered mainstream in residential deployments since the 1980s. There is no reason to pay an exorbitant amount for what equates to a plastic housing, filters, and fittings. As long as the system maintains correct pressure and doesn't leak, your $500 unit will perform exactly the same as my $220 one. The cost of filters is negligible and amounts to about $5/mo (3/yr filter supply + 3x alkaline). iSpring has it right here, and I think they will be around for a while.
2. Support:
From what I have read, the customer service can't be beat. This means a lot to me, and probably you! If a company refuses to stand by their product, then why even consider giving your hard-earned cash to some entity whom can't be bothered to acknowledge their customers' difficulties? I haven't had to contact them yet, but I'm sure I'll be glad they're listening if that day should come.
3. Components:
The build quality is what you would expect for this price range. There are no high-end stainless braided lines or a shiny stainless tank cover. The parts are mostly durable, and should last for years to come -- assuming you don't torque the crap out of them and break anything (we aren't building engines here). The parts warranty is only one year, so I'm not sure how that equates to longevity. iSpring's goal should be to sell you filters for a lifetime. So, if a part fails here or there, I could foresee trouble-free replacement. My system is in a dark kitchen cabinet so UV degradation and heat/cold stress is minimal. I fully expect 10+ years of reliable service from this system...knock on wood. The dispenser/faucet is also very nice and appears to retail for about $45.
CONs
1. Cost:
Let me preface this point by stating that this is non a con for this particular unit. Unfortunately, the necessity to buy something like this is a requirement in the modern world. RO systems come with their own unique set of costs. For starters, there is the initial investment in the base unit. This includes minimal maintenance items such as the base filter housing, connectors, tubing, and dispensers. There is also the tank, which comes pre-pressurized and contains a butyl bladder. If I expect any part to fail first, it would be the tank. Thankfully, these are ubiquitous and non cost prohibitive to replace. Next, there is wasted water to account for. It may not be much, but it is there. Finally, you have to consider the cost of filters. Since I have already done my due diligence and decided to forgo buying bottled water, it's a no brainer for me. The risk of chronic exposure to carcinogenic compounds found it my tap water is too great to consider anything else. I'd rather make a small investment in the health of my family and myself, than possibly worry about cancer 20 years from now -- and know that I didn't do everything I could to prevent it. It is your responsibility to educate yourself on matters involving YOUR health. With regards to this particular purchase, I feel as if the price is fair to excellent for the return I hope to gain from it.
2. Waste:
In my preliminary tests, I see this unit as wasting about 4 to 1 gallons of purified water. Now, this could be due to my water being exceptionally cold. My plumbing runs in a concrete slab, and it is late winter (almost February). It could also be my water pressure, however, I need to procure a gauge to verify this. RO units vary on the amount of waste they produce, and there are some mitigation products that may help. Most of the waste is seen when taking small amounts of water from the tank (think, drinking a single glass). This is due to the high back pressure from a nearly FULL TANK being topped off. Currently, I am thinking about using a permeate pump or booster pump to reduce the waste water. I need solid evidence about which product is more effective. Waste is never a good thing, and I hate throwing money down the drain.
3. Components:
The o-ring that comes with the water supply valve is thin and flimsy. Most of my water leaks came from this area. I finally wrestled it into submission, but not before destroying one o-ring in the process. The tank valve leaked during testing, but a few hard turns with a wrench fixed that as well. I was a little worried about having to tighten it as hard as I did, but so far so good. The ferrule nut and insert are made of cheap plastic. My ferrule insert was actually shattered from the factory, but I opted to pick up a 1/4" brass compression nut w/insert to replace it. I recommend you do the same. Search "Internet # 100638289" and pick up an extra 1/4" quick connect shutoff valve, a few couplers, and some 1/4" poly tubing as well. If you need to place your RO unit any reasonable distance from your sink, you'll be glad to have those. Also, you can use these parts to connect to your refrigerator (get a tee) without spending an extra $20. As far as the alkaline filter is concerned, I have yet to see its benefit. I tested the water with some PH test strips and am getting around 5. Hopefully there is a break-in period or else I may need to discuss this with customer support. My incoming water is 7, so there is room for improvement on the receiving end.
All in all, I'm impressed! I ran into a few snags, but those were specific to my install. I'm happy with the system, but now I need to verify I am getting what I paid for. I need a few testing tools like a PPM meter, proper PH meter, etc.
One final note: Make sure you check your spacing for the faucet washer under the sink. I had to chisel a cutout on one of the support beams. That was a time consuming, awkward positioning pain in the butt -- and wood dust in the eyes is not fun. =)
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