F.A.Q

Does the Multipure cartridge remove radioactivity from water?

In the case of radioactive particles of a certain size(larger than .4 microns), these would be captured by the solid carbon portion of the filter. It is not known whether carbon itself has any capability of absorbing radioactivity.

What causes white particles to appear in the Multipure water when it is frozen or boiled?

When the Multipure water becomes frozen, the natural minerals in the water solidify. When the ice melts, the minerals appear as white flakes or specks. This sometimes will occur when the water is boiled the minerals may leave a mineral deposit in the pot. Natural minerals are beneficial and this should not cause any alarm.

Why the Multipure System remove the organic chemicals in the water, but not the natural minerals?

Minerals are totally dissolved in solution and do not have an actual physical size thus the minerals pass through the filter unchanged.

Can the Multipure System be used during an emergency, or when water is turned off?

Yes, you can hand pump or siphon water through the Multipure Systems during an emergency. CAUTION:The Multipure is not intended to be used where the water is microbiologically unsafe or with water of unknown quality without adequate disinfection before or after the unit.

The Multipure System be connected to an automatic ice maker?

The models MP750 SI, MP880SI, can be connected to any type of water dispencer or ice maker. You can use the same unit installed under your sink to also filter the water at your refrigerator.

What is the difference between a "water softener" and the Multipure Drinking Water System?

Softeners are not used to treat drinking water-they are used only to change the water hardness. Softeners put sodium into water in exchange for magnesium or calcium ions.Multipure Drinking Water Systems do not remove dissolved minerals, subsequently the pH or "water hardness" is not changed.The natural minerals most often found in water are considered by many experts to be essential to the maintenance of good health.

What is the difference between the Multipure System and the Reverse Osmosis?

Reverse osmosis does not have the ability to effectivelly remove chemicals,and wastes 11-22 liters of water for each liter produced. The Multipure System DOES effectivelly remove certain volatile chemicals (see NSF Report) and certain pesticides. Τhere is no waste water. Reverse Osmosis uses a storage tank which limits your water supply, and RO removes the beneficial,natural minerals in the water. The Multipure System provides a continuous supply of pure water and leaves the natural minerals in the water unchanged.

Shouldn't sediment be removed with a standard cartridge filter first?

The Multipure System is a triple filter. The outside material is a pre-filter that helps protect the carbon block from large sediment. In areas of excessive sedimentation, prefiltration will help extend the operational efficiency of the cartridgε however, in most areas this is not necessary.

Does the Multipure System remove turbidity?

Yes. Turbidity is often refferred to as "cloudiness" which is caused by small particles or colloidal matter in the water.Turbidity will vary greatly from one area to another.It can increase dramatically after a heavy rain or during work or repairs of a water line,causing dirt,rust,and other elements to get into the line.Off-color water also can be caused by dissolved organic matter,such as plants or algae,as well as industrial contaminants in some areas.Multipure Systems have been certified by NSF to remove 99% of turbidity,and produces exceptionally clear water.


Does deionized or soft water have any effect on the Multipure filter?

Νο.

Will low PH, or acidic water affect the MP Cartridge?

Νο.

When should you change your Multipure cartridge?

The rated capacity of the replacement filter cartridge (model CB6 ) is 3000 lt. Model MP1200 with capacity monitor has an increased filter life of 4800lt. It is recommended that filters be replaced at least every 12 months or 3000 lt,whichever occurs first. Filter life will vary in proportion to the amount of water used and the level of impurities in the water being processed.

What if the Diverter valve gets stuck?

A stuck diverter valve is a common problem that is caused by the buildup of calcium(a natural mineral found in water). There are two methods for easily solving the problem:

Method A:
  • Unscrew the diverter valve from faucet
  • Pour a little vegetable oil in the inlet hole
  • Pull the valve in and out several times to assure that the oil lubricates it throughly.
This method does not dissolve the mineral deposits which build up and cause the sticking and thus will need to be repeated periodically.

Method B:
  • Unscrew the diverter valve from the faucet
  • Soak the valve in vinegar or "limeaway" for about one minute.
This method will dissolve the mineral buildup but may cause discoloration of the valve.

If the above procedures do not solve the sticking valve problem, return the Diverter Valve to Multipure Hellas for repair or replacement(one year warranty against defective material or workmanship).

How does the Multipure remove the heavy metals like lead?

Even though lead is inorganic,their large molecular size allows lead to be adsorbed by the selected carbons that are used by Multipure, to make the solid carbon block cartridge.

Why is the water intake line larger than the output line?

The larger intake line allows greater water flow(and pressure) to help force water through the filter. Because the solid sub-micron carbon inner core reduces the average faucet flow of around five gallons per minute,a larger line for the outlet is not necessary.

Should the Model MPCT used under the sink?

No. The MPCT was designed for countertop use only. It is ideal for recreational vehicles, apartments, boats, etc. It is not designed to be under constant pressure.

Why is the solid carbon block filtration system better than granulated carbon systems?


Multipure solid carbon block filters are compacted into a dense structure causing every molecule of water to be forced through microscopic pores of carbon, effectively reducing turbidity, cysts, lead, asbestos, trihalomethanes, lindane, 2, 4-D, mercury, chlordane, 1, 1-dichlorethane, PCBs, toxaphene, and certain Volatile Organic Chemicals listed on "Product Performance Data Sheet"as well as adsorbing tastes and odors and removing particulate matter removed by typical activated carbon filters.

Granulated carbon or charcoal filters can remove some elements and help improve water clarity and taste,but not as effectively as the Multipure systems.

Will the Multipure remove Sulfate?

No. Sulfate compounds in the water are also linked to mineral concentrations. For example,both Calcium Sulfate and Magnesium Sulfate are not removed by carbon adsorption.

Will the Multipure remove Calcium?

No. Calcium is a beneficial dissolved mineral.

Will the Multipure remove Nitrates?

No Nitrates in the drinking water are very rare (only MP750plusRO is cerified to remove Nitrates).

Will the Multipure system remove Iron?

Iron rust particles down to 0.5 microns are removed,dissolved iron is not. A certain amount of Iron(US RDA is 18mg/day)is essential for the maintenance of red blood cells.

What causes the "milky color" in the water?

Higher than normal water pressure through the Multipure system will create small bubbles.Air bubbles do not affect the performance of the Multipure System.

What causes an odor/taste problem?

Hydrogen Sulfide gas can cause a "rotten egg" odor problem in your unit in a few weeks or months. One solution is to have two cartridges. When one becomes saturated with odor, you can remove it and allow it to dry. The sulfer gas will dissipate from the cartrigde allowing it to be re-used. While it is drying you can use the other cartridge. Rotating cartridges will help extend the life of the filters.

Does the Multipure cartridge remove radioactivity from water?

In the case of radioactive particles of a certain size(larger than .4 microns), these would be captured by the solid carbon portion of the filter. It is not known whether carbon itself has any capability of absorbing radioactivity.

Does the Multipure cartridge remove radioactivity from water?

In the case of radioactive particles of a certain size(larger than .4 microns), these would be captured by the solid carbon portion of the filter. It is not known whether carbon itself has any capability of absorbing radioactivity.

What causes white particles to appear in the Multipure water when it is frozen or boiled?

When the Multipure water becomes frozen, the natural minerals in the water solidify. When the ice melts, the minerals appear as white flakes or specks. This sometimes will occur when the water is boiled the minerals may leave a mineral deposit in the pot. Natural minerals are beneficial and this should not cause any alarm.

Why the Multipure System remove the organic chemicals in the water, but not the natural minerals?

Minerals are totally dissolved in solution and do not have an actual physical size thus the minerals pass through the filter unchanged.

Can the Multipure System be used during an emergency, or when water is turned off?

Yes, you can hand pump or siphon water through the Multipure Systems during an emergency. CAUTION:The Multipure is not intended to be used where the water is microbiologically unsafe or with water of unknown quality without adequate disinfection before or after the unit.

The Multipure System be connected to an automatic ice maker?

The models MP750 SI, MP880SI, can be connected to any type of water dispencer or ice maker. You can use the same unit installed under your sink to also filter the water at your refrigerator.

What is the difference between a "water softener" and the Multipure Drinking Water System?

Softeners are not used to treat drinking water-they are used only to change the water hardness. Softeners put sodium into water in exchange for magnesium or calcium ions.Multipure Drinking Water Systems do not remove dissolved minerals, subsequently the pH or "water hardness" is not changed.The natural minerals most often found in water are considered by many experts to be essential to the maintenance of good health.

What is the difference between the Multipure System and the Reverse Osmosis?

Reverse osmosis does not have the ability to effectivelly remove chemicals,and wastes 11-22 liters of water for each liter produced. The Multipure System DOES effectivelly remove certain volatile chemicals (see NSF Report) and certain pesticides. Τhere is no waste water. Reverse Osmosis uses a storage tank which limits your water supply, and RO removes the beneficial,natural minerals in the water. The Multipure System provides a continuous supply of pure water and leaves the natural minerals in the water unchanged.

Shouldn't sediment be removed with a standard cartridge filter first?

The Multipure System is a triple filter. The outside material is a pre-filter that helps protect the carbon block from large sediment. In areas of excessive sedimentation, prefiltration will help extend the operational efficiency of the cartridgε however, in most areas this is not necessary.

Does the Multipure System remove turbidity?

Yes. Turbidity is often refferred to as "cloudiness" which is caused by small particles or colloidal matter in the water.Turbidity will vary greatly from one area to another.It can increase dramatically after a heavy rain or during work or repairs of a water line,causing dirt,rust,and other elements to get into the line.Off-color water also can be caused by dissolved organic matter,such as plants or algae,as well as industrial contaminants in some areas.Multipure Systems have been certified by NSF to remove 99% of turbidity,and produces exceptionally clear water.


Does deionized or soft water have any effect on the Multipure filter?

Νο.

Will low PH, or acidic water affect the MP Cartridge?

Νο.

When should you change your Multipure cartridge?

The rated capacity of the replacement filter cartridge (model CB6 ) is 3000 lt. Model MP1200 with capacity monitor has an increased filter life of 4800lt. It is recommended that filters be replaced at least every 12 months or 3000 lt,whichever occurs first. Filter life will vary in proportion to the amount of water used and the level of impurities in the water being processed.

What if the Diverter valve gets stuck?

A stuck diverter valve is a common problem that is caused by the buildup of calcium(a natural mineral found in water). There are two methods for easily solving the problem:

Method A:
  • Unscrew the diverter valve from faucet
  • Pour a little vegetable oil in the inlet hole
  • Pull the valve in and out several times to assure that the oil lubricates it throughly.
This method does not dissolve the mineral deposits which build up and cause the sticking and thus will need to be repeated periodically.

Method B:
  • Unscrew the diverter valve from the faucet
  • Soak the valve in vinegar or "limeaway" for about one minute.
This method will dissolve the mineral buildup but may cause discoloration of the valve.

If the above procedures do not solve the sticking valve problem, return the Diverter Valve to Multipure Hellas for repair or replacement(one year warranty against defective material or workmanship).

How does the Multipure remove the heavy metals like lead?

Even though lead is inorganic,their large molecular size allows lead to be adsorbed by the selected carbons that are used by Multipure, to make the solid carbon block cartridge.

Why is the water intake line larger than the output line?

The larger intake line allows greater water flow(and pressure) to help force water through the filter. Because the solid sub-micron carbon inner core reduces the average faucet flow of around five gallons per minute,a larger line for the outlet is not necessary.

Should the Model MPCT used under the sink?

No. The MPCT was designed for countertop use only. It is ideal for recreational vehicles, apartments, boats, etc. It is not designed to be under constant pressure.

Why is the solid carbon block filtration system better than granulated carbon systems?


Multipure solid carbon block filters are compacted into a dense structure causing every molecule of water to be forced through microscopic pores of carbon, effectively reducing turbidity, cysts, lead, asbestos, trihalomethanes, lindane, 2, 4-D, mercury, chlordane, 1, 1-dichlorethane, PCBs, toxaphene, and certain Volatile Organic Chemicals listed on "Product Performance Data Sheet"as well as adsorbing tastes and odors and removing particulate matter removed by typical activated carbon filters.

Granulated carbon or charcoal filters can remove some elements and help improve water clarity and taste,but not as effectively as the Multipure systems.

Will the Multipure remove Sulfate?

No. Sulfate compounds in the water are also linked to mineral concentrations. For example,both Calcium Sulfate and Magnesium Sulfate are not removed by carbon adsorption.

Will the Multipure remove Calcium?

No. Calcium is a beneficial dissolved mineral.

Will the Multipure remove Nitrates?

No Nitrates in the drinking water are very rare (only MP750plusRO is cerified to remove Nitrates).

Will the Multipure system remove Iron?

Iron rust particles down to 0.5 microns are removed,dissolved iron is not. A certain amount of Iron(US RDA is 18mg/day)is essential for the maintenance of red blood cells.

What causes the "milky color" in the water?

Higher than normal water pressure through the Multipure system will create small bubbles.Air bubbles do not affect the performance of the Multipure System.

What causes an odor/taste problem?

Hydrogen Sulfide gas can cause a "rotten egg" odor problem in your unit in a few weeks or months. One solution is to have two cartridges. When one becomes saturated with odor, you can remove it and allow it to dry. The sulfer gas will dissipate from the cartrigde allowing it to be re-used. While it is drying you can use the other cartridge. Rotating cartridges will help extend the life of the filters.

Does the Multipure cartridge remove radioactivity from water?

In the case of radioactive particles of a certain size(larger than .4 microns), these would be captured by the solid carbon portion of the filter. It is not known whether carbon itself has any capability of absorbing radioactivity.