What is water?
An “element”. Its chemical formula is
H2O. Chemically pure water does not occur in nature
(and for that reason, neither in households). Usually
water contains minerals, mainly calcium and magnesium
salts. These constituents render the water hard and
are therefore termed “hardness constituents”.
2. What do the hardness constituents cause?
They cause deposits of scale on the inner walls of
pipes, in boilers and all water conducting systems,
e.g. once-through systems.
3. What do the deposits cause?
The scale build-up reduces the free flow of water
and limits the heat transfer.
4. Are metals also attacked?
Water may cause corrosion. Piping systems and water
heaters are attacked and destroyed (rust). Furthermore,
the forming of iron oxide results in a brownish discoloration
of the water.
5. How can the damage be managed?
By costly cleaning and repair work or even complete
renewal of the water conducting system.
6. How can the damage be prevented?
As a result of years of research work, BK Landenburg
became the first company on the German market to develop
a treatment system based on the “threshold effect”.
In very small feed doses, Mikrophos prevents the deposition
of hardness constituents from the water as well as
corrosion due to aeration cells and brownish water.
7. What is Mikrophos?
Mikrophos is a slowly soluble sodium-calcium-polyphosphate
in glass-like pieces.
8. How does Mikrophos work?
Mikrophos stabilizes the hardness constituents and
thus prevents the precipitation of primarily calcium
carbonate. Heavy metal ions are complexed by Mikrophos
and deposits are thus avoided.
9. Does Mikrophos also control corrosion?
By reacting with the hardness forming ions in the
water Mikrophos establishes a protective layer of
iron-calcium-phosphates along the inner surface of
the pipes. In this way Mikrophos has a marked corrosion-inhibiting
10. Which water should be treated with Mikrophos?
Water with a tendency to precipitate hardness or even
form scale as well as water with corrosive properties.
11. Are there any concerns with regard to
drinking water which has been treated with Mikrophos?
The quality of drinking water is not affected by Mikrophos
treatment at all.
Mikrophos is approved by law for treatment of drinking
water and undergoes a permanent quality control in
terms of purity.
12. How is the water treated with Mikrophos?
As the water passes through the dispenser unit, the
Mikrophos is slowly dissolved and released into the
13. How much Mikrophos is needed?
Mikrophos is slowly soluble. Only a few parts per
million of active matter is released into the water.
14. Is it worthwhile to install dispenser
units into private households?
Depending on water quality even in small houses, water
can cause substantial damage due to corrosion. Therefore,
Mikrophos feeding is recommended.
15. How must a dispenser unit be sized?
The size is dependent on the water consumption.
16. What about running costs?
The running costs are very low, since the consumption
of Mikrophos, depending on the water quality and temperature
is only between 2 and 5g for 1 liter of water.
17. What materials are the dispenser units
The small units holding up to 10kg of Mikrophos consist
of a transparent plastic cylinder. The top and bottom
sections with the connection threads are made of corrosion
resistant metal or unbreakable plastic. The larger
units which hold 1 kg – 150 kg (for large industrial
plants, for medium sized and small works, for hotels,
hospitals, public bath, etc…) are made from
corrosion resistant metal.
18. Where is the dispenser unit best installed?
The dispenser unit is preferably installed behind
the water meter and the fine filter.
19. What points should be observed when
installing the dispenser unit?
Dispenser units should, if possible, not be installed
near radiators, boilers, hot water pipes, etc., since
heat impairs the normal dissolving speed of Mikrophos,
which is of decisive importance to its efficacy.
20. What other factors have to be considered?
The water pressure should not exceed 10 bars. A bypass
line is needed to fill the dispenser unit.
21. Who will install the units?
Any plumber should be able to do this in a short time.
22. When do the dispenser units have to
be serviced or refilled?
The decrease in quantity of Mikrophos in the units
is a function of the water consumption. We recommend
that the units be checked every 3 or 4 months and
then be refilled when about 1/3 of the quantity has
been used. Servicing should be carried out by an expert,
either a plumber or service company.
23. In which pre-packed quantities is Mikrophos
In original sizes holding 1kg, and 25 kg.
24. Are there any other precautions?
Please note that this product becomes very sharp and
brittle and can cause injury if the canister is emptied
using your bare hands. Always use thick gloves and
If the water system is not going to be used for
a long period, remove
the crystals from the housing, as they would dissolve
totally over time if
they stand in stagnant water. NB. Use gloves.