from entering the cleansing circuit and the filter from becoming unprimed (Fig. 2). The filter should be protected from sun
and rain, and kept it in an area with sufficient ventilation during operation. Never cover it during operation.
2.2 Assembly
Before assembling the filter, assemble the skimmer, following the instructions provided with the skimmer or the swimming
pool.
After the filter has been set into place, proceed as follows:
? Loosen the screw on the metal band or seal which joins the valve to the filter (Fig.4).
? Remove the TOP selector valve and cover the opening of the inner collector tube with protective plastic in order to
prevent sand from entering the tube (Fig.5).
? Place the inner collector properly on the bottom of the filter (Fig.6).
? Insert the sand (25 kg), NO SUPPLIED, inside the filter. The silica sand lasts for an unlimited period of time. It should
only be replaced if lost. Record the reference for the level of silica sand for future replacement.
? Eliminate the remains of sand from the filter opening and remove the protective plastic.
? Replace the TOP selector valve with its coupling and secure with the metal band or seal .
? Tighten firmly the screw on the metal band which joins the valve to the filter (Fig.4).
? Connect the suction and discharge hoses to the suction and discharge terminals on the valve, tightening them firmly
with the clamps (Fig.7).
? Insert the Teflon supplied on the thread of the skimmer terminal and connect the other end of the suction hose.
Tighten firmly with a clamp. Repeat the same procedure with the feedback nozzle terminal and connect the discharge
hose.
? Following installation, the first cycle of filter backwash should be performed. In order to do so, follow the instructions in
the section 5.3.
3 ELECTRIC CONNECTION
that refers "to the construction of electrical installations, both in indoor and outdoor swimming pools", or the
The pump must be connected to a 220/230 V. alternating current and 50 Hz power point, with earth connection.
Consumption: 240 W.
An omnipolar switch must be used to ensure there is no power feed to the filter when it is not in use. A 30 mA differential
must also be used to protect from electrical breakdowns. (Not supplied. These items can be purchased at electricity
shops.)
4 TOP SELECTOR VALVE
The top selector valve on the filter is used to select the 4 different filter functions: filtration (FILTER), backwash, waste and
closed. To change the valve setting, proceed as follows:
? Always disconnect the socket.
? Loosen the upper triangular knob on the valve by turning it until you can lift the cover of the housing and turn it.
? Turn the cover until the desired setting is aligned with the return hose, where the anchorage is, and the rib is inserted in
its housing (see fig. 12).
? Retighten the knob by turning it, but be careful not to overtighten as the internal components of the valve may be
damaged.
5 OPERATION
The operation of this filter is based on the filtration capacity of the silica sand which is inside. The water in the pool is
driven by the filter pump and forced to pass through the silica sand. The sand acts as a filtering element which retains the
impurities in the water. The environment, trees, pollen, insects and frequency of bathing, as well as other factors,
determine the dirtiness of the water in the pool. Depending on the dirtiness, the silica sand in the filter should be cleaned
with greater or less frequency (see section 5.3).
To maintain the pool water in good condition, use the chemical products recommended by the manufacturer (chlorine,
alga protection, etc.).
THE CHEMICAL PRODUCT SHOULD NEVER BE PLACED IN THE BASKET OR THROUGH THE FILTER, THIS
WOULD DETERIORATE THE MATERIALS OF THE UNIT AND LIMIT ITS EFFICACY.
5.1 Priming the filter
The filter must be correctly primed at all times. If the filter is not primed this means that an air chamber has been created
inside which causes defective circulation of water. This fact prevents proper filtration of the water by the silica sand and is
detrimental to the motor.
The filter may become unprimed for several reasons:
All electrical installations should comply with the following standard:
equivalent standard in force in each region or country.
NF C15-100
NF EN 60-335-2-41