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Hard Water - Pretreatment Options

Extreme Hardness

AlkaViva does not recommend using an ionizer without pretreatment of water that has one or more of the following measurements:

  • Hardness (or Calcium Carbonate) over 150ppm (8.5 grains)
  • Iron over .3ppm
  • TDS below 40ppm or over 600ppm
  • Calcium above 50ppm

AlkaViva includes a free hard water testing strip with every ionizer sold so you can determine if / what type of pre-treatment you may need.

Note: some reports will show “ppm” some will show “mg/l” – they are the same. Knowingly operating your ionizer above these levels may void your warranty and/or decrease your ionizer’s performance.
In no event shall AlkaViva or its dealers be liable for any direct, indirect, incidental or special consequential damages to property whatsoever, arising from use of its products with improperly treated or untreated hard water.

Pre- treatment options are:


AlkaViva does not recommend using an ionizer downstream (or after) a sodium or potassium based ion-exchange water softener. If you have a sodium or potassium ion-exchange softener, you will need to do one of the following:

  • Bypass the system (if the source water meets the above Water Quality criteria)
  • Change the plumbing connectors and install the softener on the hot water only
  • Install a Reverse Osmosis unit and Remineralization Cartridge

Reverse Osmosis (RO) and Distillers

Ionizers will not work downstream (or after) a RO or distiller. Many homes with an ion-exchange softening system will have an RO system. These systems remove virtually all the mineral content and leave the water with no conductivity. If you have an RO or distiller, you will need to do one of the following:

  • Bypass the system (if the source water meets the above Water Quality criteria)
  • Install a Remineralization Cartridge after the RO system

Extreme Softness

‘Soft’ water is very low in mineral and dissolved solid content which gives water its conductivity. Such water would have the following measurements:

  • TDS below 40ppm

In areas with extremely soft water (or if using a rainwater catchment system), it may not be possible to achieve optimal performance of your AlkaViva system. In this situation, a Remineralization Cartridge is recommended. AlkaViva has incorporated a proprietary blend of organic and inorganic minerals into its Remineralizer.

Well Water

  • In addition to measurements of water quality for ionization performance and longevity, health safety related issues are also important considerations when using well water. Well water tests can help to determine water quality; please refer to “The Well Water Memorandum” in your AlkaViva back office.
  • Many states require a well water test report in the closing documents of a home sale. Many local governmental Health Agencies offer free testing of well water. We recommend contacting them first.
    AlkaViva offers at a discounted price a Professional Water Test done in a certified laboratory. More details here


Many municipal water systems have started using chloramines, rather than chlorine, in the water treatment process. The UltraWater Filtration System, featuring a unique combination of media specifically designed for ultimate chlorine and chloramines filtration, is the best counter top filtration system on the market.

Important Notes

  • Please contact your AlkaViva Associate if your water falls into any one of the above categories. If your situation requires additional technical assistance, AlkaViva Technical Support will work with you to find a solution.
  • If your water is within 10% of two or more of the Extreme Hardness categories, you could possibly experience performance issues with your ionizer. You may require pretreatment. Please contact Technical Support for guidance.
  • If you are uncertain of the water quality in your area, please contact your local water supplier and request the specific Water Quality information above. The appropriate phone number will be on your water bill. If using well water, contact your county or state health dept to inquire about water testing services.