Filter Pressure Is Below The Pressure Indicated By The Blue Hand; Filter Pressure Rises Out Of The Green Zone - BWT RTM HF S-500 Notice D'installation Et Conseils D'utilisation

4.1.1 Filter pressure is below the pressure indicated by the blue hand

Clean the filter basket and the skimmers
• Stop the pump,
• P ut the 6-way multiport valve to "CLOSED",
• C lose the suction valves A, B, C, D (skimmers, main drain) and the return fitting valve E,
• O pen the prefilter and take out the basket,
• U sing a jet of water remove any debris,
• P ut the basket back,
• R eplace the lid of the prefilter making sure that the seal is correctly positioned and that there is enough
water to prime the pump,
• C lean out the skimmers.
• P ut the 6-way multiport valve to "FILTRATION",
• O pen the suction valves A, B, C, D (skimmers, main drain) and the return fitting valve E,
• R estart the pump,
• P urge air from the filter.
This operation should be carried out each time the pool is vacuumed using a brush on a suction line, and
at least once a week.
4.1.2 Filter pressure rises out of the green zone
Backwash the filter
• Stop the filter,
• C heck the prefilter for debris. (If there is a build-up of dirt clean it out as described above),
• P ut the 6-way multiport valve to the "WASH" position,
• O pen the 1/4 turn valve (F) on the outflow pipe,
• T urn the motor on,
• M onitor the water colour through the turbidity sight glass on the 6-way multiport valve.
CAUTION
Cleaning will start after a few seconds. (The water becomes very cloudy)
• As soon as the water in the turbidity sight glass becomes clear, stop the pump,
• P ut the 6-way multiport valve to the "RINSE" position,
• T urn the pump on for about 20 to 30 seconds. The purpose of this step is to evacuate any remaining
impurities and settle the sand,
• S top the pump,
• P ut the 6-way multiport valve to the "FILTRATION" position,
• R estart the pump,
• C lose the 1/4 turn valve (F) on the waste line.
• After back washing, the black hand on the pressure gauge should be realigned with the blue hand, that
is the pressure reading should return to the nominal pressure
• In the event that the pressure indicated by the pressure gauge does not drop after back washing the
filter once (or even twice) contact your installer.
CONSTRUCTION & RÉNOVATION 2021/01 - Indice de révision : I - Code : 26680
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