Several methods have been used to control the problem of blanket
weed. Water-King is the original and best of the electronic blanket weed controllers. We do
not claim to remove blanket weed completely, but simply to control
The unit can be fitted on pipes up to 50mm
in diameter and should be installed as close as possible to the
pipe. The unit will operate on any normal type of pipe material,
including corrugated, plastic and BSP (waste pipe). The pipe to
be treated must be full of water at all times which means that
water must be flowing under pressure. A pump
will cause electro-magnetic interference with the signals generated
by the Water-King and installation immediately prior to a pump
should be avoided. The optimum location is after the pump, filters
and U.V. treatment. The Water-King will also extend the life of
the quartz sleeve in the U.V. system by keeping it free of scale
deposits in hard water areas. A period of 7 to 8 weeks should be allowed
from installation before the full effects of the Water-King may
How the unit
Once the unit has been installed correctly
on the pond system it will pass an electronic signal which will
interfere with the calcium ions in the water. Blanket weed is
a long filamentous structure and calcium plays an important role
in the strength and structure of the membrane which is responsible
for controlling the nutrient intake to the cell. The electronic
signal will disrupt the equilibrium between the calcium present
in the solution and the calcium in the cell membrane upsetting
the cell metabolism. The membrane will have no means of preventing
excess solution from entering or exiting the cell, and this means
that the cell will either expand and explode, or shrink and die.Initially the process will encourage growth
and the weed will expand, but once the water reaches a "super" conditioned state, the weed will begin to die away. The Water-King
will control the growth of the blanket weed although it may not
remove it completely.
Do I need to
do anything else?
It is important that you monitor the conditions
of your pond water during this time as high nitrate levels and
pH fluctuations will cause the blanket weed to continue to grow.
This is especially important if your pond is constructed of concrete
as lime may leach into the pond water and cause a variation in
the pH level. We recommend that the nitrate level should be kept
at around 25ppm or lower. It may be higher than this, depending
upon the quality of the mains water and the filtration system
installed on the pond. If you are in any doubt then seek advice from your local stockist.We recommend that any dead or dying blanket
weed is removed in order to prevent de-oxygenation and clogging
of filters. Regular ammonia, nitrite and nitrate tests should
be carried out during this period. Ponds with excess amounts of
decaying material can suffer from a disruption of the Nitrogen
Cycle, so a water change may be required. It is also advisable
to keep feeding down to a minimum. Uneaten food, as well as dead
weed left in the pond will encourage the return of blanket weed.
Blanket weed on a waterfall will take longer to be effected by
the Water-King because of high light levels and oxygen.In some situations blanket weed growth
can increase within the first two to three weeks of operation.
This excess growth will cease when the unit has "super" conditioned all of the pond water.
The Water-King needs no maintenance or
servicing but do check occasionally to see that the light is flashing.