IV 1.3
Precoat filter
The precoat pump has to be connected with the four-way suction valve. A raw water
suction hose has to be connected from the raw water collector to the four-way
suction valve (C-Storz).
The precoat hose which is 2 m long and which is equipped with one Storz coupling
D only has to be connected to the four-way suction valve. On the other side of the
four-way suction valve the circulation hose (red-white, length 5 or 10 m) has to be
connected with the circulation outlet (three-way tap) of the precoat filter.
On delivery side, a 5 m (or 2 x 5 m) raw water pressure hose has to be connected to
the precoat pump to the raw water inflow of the precoat filter. The raw water inflow is
always at the flow rate meter of the precoat filter.
The distances should be as short as possible (5 m circulation hose and 5 m raw
water pressure hose). The precoat filter should be installed as horizontally as
possible so that a proper deaeration can be effected.
The sludge hose (only equipped with one Storz-C coupling) is coupled to the Storz-
C outlet of the precoat filter. An extension can be effected by means of red suction
hoses.
The pure water pressure hose is coupled to the pure water outlet (three-way tap) of
the precoat filter.
Take care that the pure water hoses are not thrown into the dirt
as this is the drinking water side.
At the end of the pure water pressure hose the chlorine dosing is connected and
supplied to the covered 8 m³ pure water tank with a further pure water pressure
hose via the pure water inflow pipe.
The pure water inflow pipe to the pure water tank is not hung into the tank but
attached to the outside of the pure water tank so that the first pure water can be
discharged (rinsing of the pure water pipes - about 30 sec).
Installation of the chlorine dosator only after the pure water side has been rinsed.
IV 1.3.1 Pure water tank and pure water distributor
The pure water tank has to be installed just as the raw water tanks (see point IV 1.1;
packing see Attachment 3). After hanging-in of the tank into the supporting ring, the
support for the cover has to set into the tank, braced by a “spider” with the
Attention
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