Three Year Limited Warranty
BEFORE YOU INSTALL
Please read the following information.
CUSTOMER SATISFACTION AND WARRANTY REGISTRATION
The ClearWave Hard Water Conditioner comes with a 90 day Satisfaction Guarantee. If you are not satisfied
with the performance of this product, return it with the sales receipt within 90 days of date of purchase
to where you bought it for a full refund. The ClearWave is warranted against defects in workmanship. If the
ClearWave fails within the warranty period, return it to Field Controls with proof of purchase for repair
or replacement. Please refer to the warranty sheet provided with each ClearWave for the length and terms of
TESTING FOR HARDNESS AND IRON LEVELS
The length of time required to alter the characteristics of the lime scale is dependent on the mineral
makeup of the water being treated. The mineral content of the water can influence the operation of the
ClearWave's electrical field. Before installing any water conditioning system, it is very important to know
the type and concentration of minerals in the water being treated. Contact your local health department or
county extension service to locate a water testing service near you.
Iron is a natural mineral found in the ground and that frequently is leached out into ground and well
water. EPA recommends that the levels should be below 1.5PPM, however levels as low as 0.5PPM have an
adverse taste and undesirable iron staining.
Total Hardness is a measure of the total amount of calcium and magnesium that has naturally leached into
well and ground water. Levels between 50 and 125PPM are desirable. Low total hardness levels, below 50PPM,
can be corrosive to plumbing made from copper and iron. High total hardness levels, above 125PPM, tend to
form scale inside pipes creating a barrier for the water to flow freely after many years
A high concentration of iron (soluble and insoluble) causes a disruption and weakening of the ClearWave's
electrical field, reducing its effectiveness on scale reduction. Under these conditions an iron removal
system is required to filter out the iron prior the ClearWave. We recommend an iron removal system for
total iron levels above 0.3 ppm (parts per million.)
Definition of hardness: (Taken from the 1992 edition of Standard Methods for the Examination of Water and
Wastewater.) "Originally, water hardness was understood to be a measure of the capacity of water to
precipitate soap. Soap is precipitated chiefly by the calcium and magnesium ions present. Other polyvalent
cautions also may precipitate soap, but they often are in complex forms, frequently with organic
constituents, and their role in water hardness may be minimal and difficult to define. In conformity with
current practice, total hardness is defined as the sum of the calcium and magnesium concentrations, both
expressed as calcium carbonate, in milligrams per liter."
The current practice of determining water hardness is the measurement of the concentration of calcium and
magnesium in the water. The traditional water softener removes the calcium and magnesium from the water
through a process called ion exchange; which will show a change in hardness using the current practice for
measuring water hardness. Since the ClearWave does not remove any calcium or magnesium ions from the water,
testing the water before and after the installation of the ClearWave will not show any change. The best
method of evaluation is to monitor the effects the ClearWave has on scale forming areas such as: the
effects on humidifier media pad scaling, showerhead scaling and the amount of soap needed to do the
The degree of water hardness in the table below (according to the Water Quality Association) will allow you
to determine what type of water hardness you have after you receive your water test data.
Description of water hardness Parts per Million (ppm) of Calcium Carbonate equivalent Grains per Gallon
(gpg) of Calcium Carbonate equivalent
Description of water
Parts per Million (ppm) of Calcium Carbonate
Grains per Gallon (gpg) of Calcium Carbonate
Less than 17.1
Less than 1.0
17.1 to 60
1.0 to 3.5
60 to 120
3.5 to 7.0
120 to 180
7.0 to 10.5
180 and above
10.5 and above
If your water falls under the description of Soft or Slightly Hard, the effects of the ClearWave on the
scale (if any) will not be noticeable. Any water problem you have is probably not caused by calcium or
magnesium. On hardness levels above 250 ppm or 15 gpg two ClearWave units should be mounted in series on
the incoming water pipe. The maximum hardness level the ClearWave will effectively work on is 425 ppm or 25
gpg. Above these levels, the ClearWave should be used in conjunction with a traditional ion exchange water
softener to remove hardness and condition the water. This allows you to minimize the salt used to remove
the hardness and maintain the cost saving benefits of the ClearWave water conditioning system.
OPERATION TIMETABLE FOR THE CLEARWAVE
The following timetable of events should be used to evaluate the operation of the ClearWave during the
180-day customer satisfaction period. This is the best way to evaluate the ClearWave operation and benefits
the ClearWave technology can provide for you and your home. Again, the ClearWave does not remove any
calcium or magnesium ions from the water, testing the water hardness before and after the installation of
the ClearWave will not show any change.
DAY 1: The ClearWave action immediately starts to loosen existing scale in both the hot and cold water
systems. One should find soap lathers more easily.
DAY 5 and onwards: Scale begins to break down and come off water heater elements (immersion heaters) and
tanks. Most particles are microscopic and will flow through your water system, but some small particles may
be seen in the water coming from the hot water tap.
DAY 10 to 16: It should be noticeably easier to wipe clean ceramic, plastic, glass, and metal surfaces. By
now the quantity of bath soap, dish soap, laundry detergent, and laundry softening agents can be reduced.
Scale should have loosened on faucets, showerheads and frequently used appliances that boil water (such as
DAY 16 and onwards: Scale should continue to loosen from faucets, showerheads, and pipes. With the
continuing break down and reduction of scale from the heating surfaces of water heaters, water should heat
up quicker using less energy to achieve the desired temperature.
After 1 to 2 months: Any scaly crust or stains in toilets or under faucets should be significantly reduced.
No new stains or crust should form. Mold that attaches to scale will begin to disappear from shower
curtains and once cleaned should not reappear. Depending on the water hardness in the area, the full
effects can take up to 12 weeks, especially if the system has been heavily scaled up over many years.
WHERE TO INSTALL THE CLEARWAVE
The ClearWave coils should be mounted on the water supply pipe as it enters the building, before the piping
branches off to supply the water heater and any cold water taps. This allows the ClearWave to condition all
of the water supplied to the building. The ClearWave should be mounted after any water meter or grounding
cable attached to the water piping system. The ClearWave is designed and tested to cause little or no
interference to other communication devices. Install the ClearWave at least ten feet from any radio,
television or cordless telephone base unit to eliminate any possible interference.
HOW TO INSTALL THE CLEARWAVE
Mounting the unit to the pipe
There are two sets of pipe clips provided with the ClearWave, one set is for mounting on 3/4" water pipes
and the other is for mounting on 1" water pipes. Select the proper size clips by attaching one of each size
clip onto the water pipe where the ClearWave is to be mounted. Choose the clip size that fits tightest onto
the pipe. First, mount the selected pipe clips to the base of the ClearWave housing by using the screws
provided. Next, mount the ClearWave onto the pipe by pressing the clips onto the water pipe. The clips may
not fit tightly on all pipes. For these cases and other size pipes, secure the unit to the water pipe with
The performance of the ClearWave is not affected by the direction or orientation. The unit may be mounted
horizontally, vertically, or diagonally. The ClearWave can be used effectively on any type of water pipe;
galvanized, copper, or plastic.
Properly wrapping the antennae
The antennae wrap around the water pipe on each end of the ClearWave. (See Figure 1.) A minimum of seven
fully wrapped coils of the antenna wire, with each coil wrapped tightly against the pipe and pressed snugly
against each other is required for best results. (See Figure 2.) The operation of the ClearWave and the
antenna installation is not based on direction of water flow, but one antenna MUST be wrapped in a
clockwise direction and the other wrapped in a counter-clockwise direction. First, wrap the antenna onto
the water pipe by securing the right antenna to the water pipe next to the ClearWave housing with a wire
tie. Wrap the right antenna clockwise (over the top of the pipe first), keeping the antenna wire tight
against the pipe and the preceding coil. Secure the end of the right antenna wire to the water pipe with a
wire tie. (See Figure 2.) Wrap the left antenna onto the water pipe by securing the antenna to the water
pipe next to the ClearWave housing with a wire tie. Wrap the left antenna counter-clockwise (under the
bottom of the pipe first), keeping the antenna wire tight against the pipe and the preceding coil. Secure
the end of the left antenna wire to the water pipe with a wire tie.
Connecting to power supply
Insert the power supply plug into the power supply jack on the side of the ClearWave, then plug the power
supply into a standard electrical wall outlet. (See Figure 1.) When energized, the ClearWave modulation
indicator lights start flashing sequentially indicating that the ClearWave is functioning properly.
TROUBLE SHOOTING INTERFERENCE
The ClearWave is designed and
tested to cause little or no interference to other communication devices. Install the ClearWave at least
ten feet from any radio, television or cordless telephone base unit to eliminate any possible
POWER SURGES AND LOCK UPS
If you find the ClearWave worked for a while then seemed to stop producing the same results, the
microprocessor may have locked up due to a electrical spike or power surge. If your home is in an area that
these types of problems occur, install a surge protector on the electrical outlet that the ClearWave
transformer is plugged into. To evaluate the operation of the ClearWave to determine if the unit has locked
up and needs to be reset, observe the flashing indicator lights on the front of the ClearWave. They
indicate the changing frequency of the unit. The output frequency cycles every 5 minutes, so you should see
the lights flash progressively faster throughout the cycle, then slow down and repeat. If, during this
5-minute cycle, you do not see any change in the frequency of the flashing lights, unplug the power supply
and wait at least one minute. Then plug the power supply back in. This will reset the microprocessor. You
should observe the changing of the frequency in the indicator lights and proper operation.
LOOSE ANTENNA WIRES
If you find the ClearWave worked for a while then seemed to stop producing the same results, and the unit
appears to be operating fine (see the Power Surges and Lock Ups section), then the antenna wires could have
loosened on the pipe. The antenna wires must be held tightly against the pipe and the coils must be pressed
snugly against each other to transfer the energy into the water. If the antenna wires are loose, tighten
them and also retighten the wire ties. Be sure that the antennae are wrapped in the proper direction. (See
HOW IT WORKS
Pure water contains nothing but H20. But water, as it comes out of the ground, is rich in a multitude of
minerals. Minerals such as calcium and magnesium are the main components of hard water, and the cause of
scale formation and other problems.
There are three basic methods used to control the problem of hardness and specifically scale formation.
One method is to remove the calcium and magnesium from the water through ion exchange (the traditional
water softener.) This method requires the use of a resin filled tank with a high concentration of salt
ions. As the water flows through the resin tank the salt ions (typically sodium) are exchanged for the
calcium or magnesium ions. This lowers the concentration of the minerals that cause scale and therefore
inhibits scale formation.
A second method used to control hard water scale is the addition of chemicals (such as phosphates) to the
water. These materials chemically alter the scaling characteristics of the calcium or magnesium, allowing
the concentration of the minerals to stay the same while still reducing scale formation and its
Both of the above methods require the use of consumable materials to change the makeup of the water. For
these devices to function properly, the homeowner must continuously replenish the salts or chemicals as
well as perform periodic maintenance on the equipment. In addition to these inconveniences, the chemicals
and salts discharged into the effluent water present problems downstream to the municipal water treatment
facility and the environment. Many U.S. cities have been enacting and/or evaluating environmental
legislation to limit or reduce the levels of chemicals or salts that result from these types of water
A third method used to treat the hard water problems associated with scale utilizes changes in electrical
potential in the water to produce the effects of chemical addition. The electric potential applied changes
the scaling characteristics of the calcium or magnesium without the removal of these ions or the addition
Bar magnets were the first types of equipment used to generate electric potential changes in water. Bar
magnets have been used with limited success to inhibit scale formation. The fixed magnetic field of a bar
magnet creates electric potential changes in the water only when the water moves through the magnetic
field. Electromagnets function in much the same way as bar magnets, but the magnetic field is created by
passing a current through a coil, essentially creating a more powerful fixed magnetic field. Inherently,
fixed magnetic fields are limited to a narrow range of applications, pipe sizes and water flow rates.
Permanent bar magnets and electromagnets have been promoted as a method of "treating" hard water, but they
do not treat the vast and complex array of mineral contents and concentrations found in water. Particles
can also build up inside the pipe where the magnet is placed, eventually causing blockage at the very point
it is supposed to be doing its job.
Electrostatic devices create an electric potential in the water between two electrodes. One electrode is
mounted in the water stream in the center of the pipe housing, while the pipe itself acts as the other
electrode. The device applies a voltage across the two electrodes to create the electric potential in the
water. This electrostatic approach was an improvement upon the bar magnets and electromagnets, but
increased the initial cost considerably while not dramatically improving the range of effective
The ClearWave water conditioning system operates on similar principles as the magnets and electrostatic
devices. But unlike those previously mentioned, the ClearWave uses microprocessor technology to
electronically generate inaudible wave-forms which help keep calcium carbonate particles (scale) dissolved
or suspended in water. With the ClearWave, the electric field generated is always being applied to the
water, while a magnetic field relies on the movement of water to produce the electric potential
Low frequency waveforms are emitted through two coiled wires attached to the outside of the water pipe. As
a result of these waveforms, the two coils are constantly inducing a voltage into the water in the area of
the ClearWave. When one coil induces a positive voltage the other coil induces a counteracting negative
voltage. This electric field causes the calcium or magnesium to remain in solution or suspension and the
treated water continues to dissolve scale as it flows downstream. Over time, the ClearWave treated water
helps solve hard water problems in the entire system, including pipes, water heaters, showerheads, and
appliances. The ClearWave microprocessor-controlled technology continually varies its frequency, affecting
the widest range of mineral concentrations and other variables that cause "hard water" problems.
The ClearWave® originated in Great Britain where hard water scale build up is a problem nationwide. The
product was brought to the U.S. in the early 90's. Over 50,000 units have been sold worldwide.