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.

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

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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.

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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.
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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.
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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.
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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.
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General Questions – Answers

How do I buy a PiMag Waterfall or replacement parts?

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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.

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

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

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Do the Nikken Aqua Pour and Aqua Pour Deluxe have the same size lid?

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How long can PiMag water sit?

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What are the benefits of a Nikken water filtration system?

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How does the PiMag Waterfall ionize water?

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

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Which Nikken water filter should I use?

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

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Is the water from the Nikken PiMag filters alkaline?

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Do the Nikken PiMag water filters remove fluoride?

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What does the Nikken PiMag Optimizer do?

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Nikken Shower Filter Answers

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

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4 Responses to PiMag Water System FAQ

  1. 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.

  2. 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.

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