Introduzione
This manual provides essential information for the safe operation, installation, and maintenance of your Intex Krystal Clear SX925 Sand Filter Pump. Sand filters are recognized for their efficiency in maintaining clear and sparkling pool water. This model, 26642/SX925, is designed for optimal filtration performance in various pool types.
The unit features a circulation capacity of 2,000 liters per hour (L/h) and a pump capacity of 3,500 L/h. It operates on 220-240V/90W and is suitable for pools with a water volume of approximately 16,805 liters. It is compatible with standard Intex hose connections and can be used with saltwater pools (up to 3 g/l salt content) and water temperatures up to 35°C.
Informazioni sulla sicurezza
Always read and follow all instructions carefully before installing, operating, or maintaining this product. Failure to do so can result in serious injury or property damage.
- Sicurezza elettrica: Ensure the power outlet is properly grounded and protected by a Ground Fault Circuit Interrupter (GFCI) or Residual Current Device (RCD). Do not operate the pump if the power cord or plug is damaged.
- Acqua ed elettricità: Never operate the pump when people are in the pool. Keep all electrical connections dry and away from water.
- Sicurezza dei bambini: Questo apparecchio non è destinato all'uso da parte di persone (bambini compresi) con ridotte capacità fisiche, sensoriali o mentali, o prive di esperienza e conoscenza, a meno che non siano state supervisionate o istruite in merito all'uso dell'apparecchio da una persona responsabile della loro sicurezza. I bambini devono essere sorvegliati per assicurarsi che non giochino con l'apparecchio.
- Manutenzione: Scollegare l'alimentazione prima di eseguire qualsiasi operazione di manutenzione o pulizia.
- Installazione: Install the pump on a firm, level surface. Ensure proper ventilation around the pump.
- Prodotti chimici: Handle pool chemicals with care and follow manufacturer's instructions.
Contenuto della confezione
Verificare che tutti i componenti siano presenti e integri:
- Intex Krystal Clear SX925 Sand Filter Pump Unit
- Serbatoio filtro
- Motore della pompa
- 6-Way Multi-Port Valve
- Manometro
- Tubi e Clamps
- Plunger Valves (if applicable for your pool model)
- Manuale di istruzioni

Image: The main Intex Krystal Clear SX925 Sand Filter Pump unit, showing the filter tank, pump motor, and multi-port valve.
Configurazione e installazione
Follow these steps for proper assembly and installation of your sand filter pump.
- Posizionamento della pompa: Place the sand filter pump on a solid, level surface, at least 2 feet (0.6 meters) away from the pool. Ensure the location is dry, well-ventilated, and protected from direct sunlight and rain.
- Assembling the Tank and Pump:
- Attach the pump motor to the filter tank base.
- Ensure all connections are secure and sealed with O-rings where necessary.

Immagine: Primo piano views of the multi-port valve, sand tank, and pump motor components, highlighting their integration.
- Adding Filter Media:
- Remove the multi-port valve from the top of the tank.
- Place the standpipe and laterals assembly inside the tank.
- Carefully pour the recommended amount of filter sand (silica sand No. 20 or glass filter media 0.45/0.85mm) into the tank. Ensure the standpipe remains centered.
- Replace the multi-port valve, ensuring it's securely fastened to the tank.

Image: This image illustrates the pump's specifications, including flow rates (3500 L/h pump, 2100 L/h filtration), motor power (90W/0.125 hp), and recommended filter media (silica sand No. 20 or glass sand 0.45/0.85mm).
- Tubi di collegamento:
- Connect the pump's inlet to the pool's outlet (skimmer/main drain).
- Connect the pump's outlet to the pool's inlet (return jet).
- Connect the waste port of the multi-port valve to a suitable drainage area.
- Secure all hose connections with clamps per evitare perdite.
- Adescamento della pompa: Before starting, ensure the pump is primed by filling the pump housing with water. This prevents airlocks and ensures proper operation.
Video: A visual guide demonstrating the assembly and setup process of the Intex Krystal Clear Sand Filter Pump, including component identification and connection steps.
Funzionamento della pompa filtro a sabbia
The multi-port valve allows for different operating modes:
- Filtro: Normal filtering mode. Water flows through the sand and returns to the pool.
- controlavaggio: Cleans the sand filter by reversing water flow. Use when pressure gauge indicates high pressure or water flow is reduced.
- Risciacquo: Used after backwashing to settle the sand and flush out any remaining dirt before returning to filter mode.
- Sciupare: Bypasses the filter and pumps water directly out of the waste port. Useful for vacuuming heavy debris or lowering pool water level.
- Ricircolo: Circulates water without filtering. Useful for distributing chemicals.
- Chiuso: Interrompe completamente il flusso al filtro. Utilizzare solo quando la pompa è spenta.
Importante: Always turn off the pump before changing the multi-port valve position.

Immagine: Un dettaglio view of the pump's control panel, showing the digital programmer for setting operation times and the pressure indicator gauge, which helps determine when backwashing is needed.
Manutenzione
Una manutenzione regolare garantisce prestazioni ottimali e longevità della pompa filtro a sabbia.
- Lavaggio a controcorrente: Perform backwashing when the pressure gauge reads 3-5 PSI (0.21-0.35 Bar) above the starting clean pressure, or when water flow to the pool is noticeably reduced.
- Spegnere la pompa.
- Impostare la valvola multiporta su "Controlavaggio".
- Turn on the pump and backwash until the water in the sight glass is clear (approx. 2-3 minutes).
- Spegnere la pompa.
- Impostare la valvola multiporta su "Risciacquo".
- Accendere la pompa e risciacquare per 30-60 secondi.
- Spegnere la pompa.
- Set the multi-port valve to "Filter".
- Accendere la pompa per il normale funzionamento.
- Sostituzione della sabbia: Filter sand typically needs to be replaced every 3-5 years, depending on usage and water quality. Glass filter media may last longer.
- winterization: Before freezing temperatures, drain all water from the pump, filter tank, and hoses. Store the unit in a dry, protected area.
- Pulizia: Periodically clean the pump's strainer basket (if applicable) and inspect all O-rings and seals for wear.
Risoluzione dei problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| La pompa non si avvia | No power; GFCI/RCD tripped; Motor overheated; Impeller jammed. | Check power connection; Reset GFCI/RCD; Allow motor to cool; Clear impeller of debris. |
| Basso flusso d'acqua | Clogged filter sand; Clogged strainer basket; Air leak in suction line; Low water level in pool. | Backwash/Rinse filter; Clean strainer basket; Check hose connections for leaks; Add water to pool. |
| Perdita d'acqua dalla pompa/valvola | Collegamenti allentati; O-ring/guarnizioni danneggiati; alloggiamento incrinato. | Tighten connections; Replace O-rings/seals; Contact customer support for replacement parts. |
| Acqua della piscina torbida | Insufficient filtration time; Dirty filter sand; Improper chemical balance. | Increase filtration time; Backwash/Rinse filter; Test and adjust pool chemicals. |
Specifiche
- Modello: 26642 / SX925
- Dimensioni (L x P x A): 44 x 35 x 30 cm (17.3 x 13.8 x 11.8 pollici)
- Peso: 7.34 kg (16.18 libbre)
- Materiale: Plastica
- Fonte di energia: Adattatore CA
- Voltage: 220-240 Volt
- Capacità della pompa: 3,500 L/h (925 GPH)
- Circulation Capacity: 2,000 L/h (530 GPH)
- Temperatura massima dell'acqua: 35°C (95°F)
- Suitable Pool Volume: Approx. 16,805 L (4,440 gallons)
- Compatibilità con l'acqua salata: Up to 3 g/l salt content

Image: The Intex sand filter pump shown in an outdoor setting, connected to a pool, illustrating its typical use case for pools under 17,000 liters.
Garanzia e supporto
Intex products are manufactured with the highest quality materials and workmanship. All Intex products have been inspected and found free of defects prior to leaving the factory. Intex stands behind all its products. For warranty claims or technical support, please refer to the contact information provided on the product packaging or visit the official Intex websito.
Please retain your proof of purchase as it will be required for warranty service.





