PiMag Water System FAQ

I have received a lot of questions about the Nikken PiMag water systems, so here are some answers. If you have a question that I do not answer here, please leave me a comment at the bottom of this page and I will answer you directly and add it to this list.

The PiMag Waterfall water filter and replacement parts are available here.

Disclaimer: I am an independent distributor and I do not speak for Nikken. These are my answers to the questions based on my everyday use of the PiMag water systems. They are not “official” in any way.

Click on the question link to get to the answer farther down the page.

Maintenance and Troubleshooting

Nikken Shower Filter Questions

General Questions

Maintenance and Troubleshooting Answers

Where can I get a manual for my Nikken PiMag water system?

Aqua Pour gravity water system manual – click here
Aqua Pour Deluxe gravity water system (water cooler version) – click here
PiMag Waterfall –¬†below the description on the
Nikken Waterfall page
PiMag Ultra Shower System – click here
PiMag MicroJet Shower – below description on the
Nikken MicroJet page

Back to top

Water from my Nikken Aqua Pour or Waterfall tastes funny or bad

If the water tastes bad and you have NOT changed the filters recently then it is probably beyond time to replace them.

If you have just replaced your filter cartridge or you are setting up your system for the first time then the cartridge needs to be rinsed out. During shipping the cartridge can get knocked around a lot and shake some of the filtration material loose. The easiest way to rinse out the cartridge is to fill the top tank and let it drain completely into the lower tank. Once complete, drain the water out through the spigot and pour it back into the top to drain through again. Two or three cycles through will take care of it in most cases though sometimes I have seen it take six to eight cycles for the taste to go away completely. The water is still safe to drink.

Back to top

How do I use the Aqua Pour micro sponge or ceramic dome pre-filters?

The Aqua Pour ships with two pre-filters, the micro sponge and the ceramic dome. You can only use one of them at a time, so you have to choose one or the other.

The micro sponge pre-filter: The micro sponge comes as a hard, dry disk. If you choose to use it you will need to soak it for about a half hour to let it expand out then place it in the well at the bottom of the top tank on your Aqua Pour. If you don’t let it soak up water first then it will be too small to stay in place and will float to the top. It takes about 45 minutes for the top tank to drain completely into the bottom tank when you use the sponge.

The ceramic dome pre-filter: To use the ceramic dome you will need to prepare it for use first. Take it out of the packaging, turn it upside down, and fill it with water through the little hole in the bottom. Then place it in a bowl of water and let it soak over night. After it has soaked, keeping it upside down and as much water inside as possible, screw on the spacer to the threads around the hole, then place the top tank upside-down over the spacer so that the dome is inside the tank and attach the nut that holds the ceramic dome and spacer in place to the bottom of the tank. Now turn this assembly right side up and set it on the Aqua Pour.

This process will soften the ceramic material and keep air out of the interior of the dome so that water flows through it easily. It should take about 5 hours for the top tank to drain completely when you use the ceramic pre-filter.

See the Nikken Waterfall and the replacement parts.

Back to top

How do I prepare and assemble by PiMag water filter?

The PiMag Waterfall is the current water filter from Nikken. It comes assembled in the box though you have to disassemble it to install the filter cartridge once it is prepared. The video below from Nikken shows how to do this.

If you have the older Aqua Pour then you want to prepare the filter cartridge as you would for the Waterfall. See the video above. The Aqua Pour has a choice of two pre-filters, a micro sponge or a ceramic dome. You only use one or the other. If you choose the sponge, put it in the water with the filter cartridge as in the video above. If you choose the ceramic dome then prepare it as described in the Pre-filter answer above here. Once everything is prepared, this video shows you how to assemble your Aqua Pour.

See the Nikken Waterfall and the replacement parts.

Back to top

When do I change the filters in my Nikken water filter?

The manuals have a recommended schedule for changing the replaceable filtration components and mineral stones.

PiMag Waterfall

Filter cartridge – change every 3 months
Mineral stones – change every 12 months
Click here for help preparing the filters for use.

Aqua Pour and Aqua Pour Deluxe

Filter cartridge – change every 6 months
Mineral stones – change every 12 months
Ceramic dome pre-filter (if used) – change every 24 months
Microsponge pre-filter (if used) – change at lease once every 5 years
For more information about the Aqua Pour pre-filters go here.
Click here for help preparing the filters for use.

Counter-top and under counter water systems

Filter cartridge(s) – change every 12 months
Click here for the manuals for further assistance.

See the Nikken Waterfall and the replacement parts.

Back to top

How do I clean my PiMag Aqua Pour or PiMag Waterfall?

The best time to clean your Aqua Pour or PiMag Waterfall is when you change the filter cartridge. Disassemble your water filter and dispose of the parts you are replacing. You can wash out the tanks with hot water and a very mild detergent then rinse them thoroughly. You can rinse the stones under running cold water if you aren’t replacing them yet. Use only cold water on the filter cartridge and any of the seals.

Once clean, reassemble your unit. Click here if you need help reassembling your unit.

See the Nikken Waterfall and the replacement parts.

Back to top

General Questions – Answers

How do I buy a PiMag Waterfall or replacement parts?

Go to my PiMag Waterfall page and either click on the Waterfall itself to order a new unit, or click on the picture of the replacement parts to order the filter cartridge and/or the mineral stones.

Nikken recommends that you replace the filter cartridge every 3 months and the mineral stones every 12 months.

Back to top

Are Nikken water filters BPA free?

Yes. The Aqua Pour and PiMag Waterfall systems as well as the current water bottle are all BPA free.

Back to top

What pH can I expect from my Nikken gravity water filter?

PiMag Waterfall – Nikken claims a pH range of 8.5 to 9.5 for the Waterfall. When the cartridge is new you should get water that is close to 9.5 pH and it will gradually come down to 8.5 pH over the 3 month life expectancy of the filter cartridge.

PiMag Aqua Pour – Nikken never made any specific pH claim for the Aqua Pour. I usually had around 7.5 pH from my Aqua Pour.

Back to top

What is a gravity water filter? How do I use one?

A gravity water filter is a water filter that is powered by gravity.

In the case of the PiMag Waterfall, it is a stand-alone water filter. You pour water into the top tank, usually called the “fill tank.” Over time, gravity pulls the water down through the filter cartridge into the bottom tank, the supply tank.

The supply tank on the Waterfall holds just under 1.5 gallons, so water is always available as long as you add more water when you take some.

If the filter cartridge is prepared properly the water flows through it pretty fast. I haven’t timed mine but I’ve never had to wait too long when someone forgets to put more water in after draining it.

Back to top

Do the Nikken Aqua Pour and PiMag Waterfall have the same size lid?

No. The Aqua Pour is round and the PiMag Waterfall is oval shaped.

Back to top

How long can PiMag water sit?

I heard all the other distributors debate about this back when I started out as a distributor.

The water should last as long as you need it to in the supply tank of the filter. If you decide to take it out of the filter and refrigerate it, then it should maintain its properties over night.

It really comes down to how much water you drink. If you drink the recommended amount of water every day then you should be draining and refilling your Waterfall at least ever other day if you are the only one using it. If you have a family of four and use the water for cooking too, then you probably drain and refill it a few times every day.

Back to top

What are the benefits of a Nikken water filtration system?

There are many benefits to a Nikken water filtration system.

Check out one of my blog posts about how to get great tasting water for a more in-depth answer. I’ll summarize some of the benefits here.

A PiMag water filter will remove many of the impurities in your drinking water, including most of the chemicals, like chlorine that cities put into it.

They make the water alkaline. The PiMag Waterfall adjusts water to somewhere between 8.5 and 9.5 pH.

The PiMag Waterfall is a stand-alone gravity water filter. That means it doesn’t use electricity or water pressure to filter your water. It isn’t in the way at your sink. And it holds water so you don’t have to go without when the power goes out.

Back to top

How does the PiMag Waterfall ionize water?

Yes, the PiMag Waterfall does ionize the water to a small degree. They made a big deal about it when it first came out but they don’t talk as much about it now. The ionization provides a minimal benefit and they hype was created by another water filtration system (an outrageously expensive one that requires electricity and a connection to your faucet).

Back to top

What is PiMag water? How do the Nikken water filters work?

Back to top

Which Nikken water filter should I use?

Back to top

What is alkaline water? Is alkaline water good for you?

Back to top

Is the water from the Nikken PiMag filters alkaline?

Back to top

Do the Nikken PiMag water filters remove fluoride?

Nikken doesn’t claim to remove fluoride because they can’t remove better than 95% of it. I’ve always been told that it removes between 60-65% of the fluoride.

Fluoride is notoriously hard to remove from water. I was researching other systems that claim to remove fluoride but found that a lot of them don’t do a whole lot better. It appears there is a big difference between “removed fluoride” and “eliminates fluoride.”

Back to top

What does the Nikken PiMag Optimizer do?

The PiMag Optimizer used a magnetic field to create a water vortex within the Optimizer pitcher.

The vortex added air and more minerals to the water to make it slightly more alkaline. My water never reached 8 pH, so the Waterfall does a much better job by itself.

Back to top

Nikken Shower Filter Answers

How often do you change the filters in the Nikken shower head?

Nikken carries replacement filter cartridges for both of their current shower filters – a hand-held unit and a wall-mounted unit as well as the previous wall-mounted unit.

Actually both the current and previous wall-mounted shower filters use the same filter cartridge.

PiMag MicroJet Hand-held Shower Filter – Nikken recommends that you change the filter cartridge every 3 months. The replacement cartridges come in 2-packs so you only need to order new ones every 6 months.

PiMag MicroJet Wall-Mounted and PiMag Ultra Shower System Filter – Nikken recommends that you change the filter cartridge every 6 months.

All of the PiMag replacement parts are available here.

Back to top

20 Responses to PiMag Water System FAQ

  1. Alan Maddocks says:

    How do I decide which filter to use Sponge or Ceramic?

    • Wayne says:

      The easy answer is to just use the sponge. The ceramic dome is too much of a hassle unless you really need a stronger pre-filter. The current system, the PiMag Waterfall, doesn’t have a ceramic option.

  2. Wendy Hayes says:

    Should I put my Pima waterfall system in the fridge to keep the water cold?

  3. Nancy says:

    Hello! I have the old Nikken aqua pour. It had been in storage, so I purchased new filter, rocks etc. I’ve assembled it according to the directions and everything was great, except the tap is not working. If I take it apart from the front and remove the spigot and take out the silicon piece the water pours out, but when I put it back on, it does not. The spigot flange is very loose. Any thoughts? Thank you

    • Wayne says:

      When you move the flange back or forth it should open the valve to let the water through. If I understand you correctly, it sounds like something in there broke, which would make the flange very loose. The valve isn’t providing any resistance. You should be able to call Nikken and get a replacement spigot assembly.

  4. Mark Smith says:

    We have the Pimag Waterfall. It seems the faucet is not flowing, about half. Should I run some vinegar thru it next cleaning?

    • Wayne says:

      The Waterfall and the Aqua Pour are both gravity systems. I’m guessing from your other comment that maybe you have the older Aqua Pour. Either way, they work pretty much the same. If water is restricted through the spigot and you’ve checked the obvious things, like the water level in the tank is above the top of the spigot opening, then I would remove the spigot and the magnet, visually inspect them, and clean them out with a pipe cleaner. That would be easier to see if the problem was something other than mineral buildup over time, so something like that.

  5. Troy Manning says:

    We bought a new filter and mineral rock and assembled the new ones the way the video showed but the red light is still blinking. Why? Does it get reset somehow?

    • Wayne says:

      Hi Troy. To reset the LED you need to press and hold the button below the LED for about 10 seconds. The LED will flash, then stay on, and finally go out. Then you can let go of the button.

  6. Margaret Enright says:

    I need a step by step instructions on how to assemble the pimag water system

  7. Zee says:

    Has anyone notIced that there is a calcium build up even when I use the water in my kettle? Is that normal for sit not remove calcium?

    • The Nikken water filters don’t remove all of the mineral content in your water. Actually, the mineral rocks add minerals to the water after filtering. Boiling water in a kettle could build up a mineral scale over time if it isn’t cleaned regularly.

  8. P. Wilcox says:

    I received my Pi mag waterfall last Thursday evening. I set it up and followed the manual directions on Friday. My filter had water leaking around the purple rubber seal down to the second level. I tried to re secure the band. And then also we again watered the filters and squeezed potential air from the four small and one large white filter. after several attempts, finally the top of the filter stayed in place and it appears to not leak period but now it takes 20 minutes or so for water to fall to the second unit- that is with only 5 or 6 cups of water poured from Top. Of course the company was closed over the weekend. And I am still not sure what to do

    • Hi P. I will definitely help you get your Waterfall straightened out.
      If water is leaking around the filter cartridge then it is either 1 of 2 things.
      1) The purple seal has become dislodged – which you took care of.
      2) The filter cartridge isn’t pressed all the way into place. It goes in very snuggly. When I insert a new filter I hold the top tank underneath to support it so that I don’t feel like I’m going to break the plastic.
      Now for water flow. There are a few things that can affect it, and usually that involves air bubbles getting stuck somewhere.
      1) Soak the filter cartridge overnight. Put it upright in a bucket and fill the bucket to just below the purple seal. That will allow all of the air to escape out the top of the filter cartridge. Then drop the white pieces in the water beside the cartridge. I usually squeeze them under the water to get the air out so that they sink.
      2) When I install the filter cartridge I leave the white pieces loose in the top tank until I know water is flowing easily through the cartridge.
      3) When I am satisfied with that, I install the white pieces and put the cap on the filter cartridge. I do this with the top tank about 1/4 full of water so that I don’t trap any air between layers.
      That should take care of everything.

  9. Eileen says:

    It says to replace the filters about 250 fillings or 3 mos. How often do the mineral rocks have to be changed. That would be really expensive to change both out every 3 mos

    • Hi Eileen. Nikken recommends that you change the rocks every 12 months.
      Nikken has an autoship where you can have a new filter cartridge sent to you automatically every 3 months, or 2 of them every 6 months. That would save you 10% on your filter cartridges. The last time I checked the math, you save the most by ordering everything you need for the year all at one time. You pay the regular price for the parts but you end up spending a lot less on shipping, especially in Canada where the shipping charges are even higher than for the US.

  10. Rachel says:

    What is the best way to dispose of a used filter cartrisge? Can the contents be composted?

    • Ben says:

      Hi Rachel. You should be able to compost all of the contents of the filter cartridge except maybe for the little white marbles. The filtration media is mostly carbon and the rest of it is also mineral. The marbles are ceramic and won’t harm the soil but I don’t think they will decompose very quickly.

Leave a Reply

Your email address will not be published. Required fields are marked *