1. Introducció
This user manual provides essential information for the safe and efficient operation, installation, and maintenance of your FLUIDRA MONOBLOC Galactic D.500 T/Z 1/2CV pool filter system. Please read this manual thoroughly before attempting to install or operate the unit. Proper installation and maintenance are crucial for optimal performance and longevity of the filter system.
The FLUIDRA MONOBLOC Galactic D.500 T/Z 1/2CV is a high-quality filtration unit designed to keep your pool water clean and clear. It combines a robust filter tank with a powerful pump, providing an integrated solution for pool water circulation and purification.
2. Informació de seguretat
Always observe basic safety precautions when installing and operating this electrical equipment. Failure to follow these instructions could result in serious injury or death.
- Desconnecteu l'alimentació abans del servei.
- Ensure the system is installed by a qualified professional in accordance with local electrical and plumbing codes.
- Do not operate the filter system if any part is damaged or missing.
- Mantenir els nens allunyats de l'equip.
- No feu servir mai la bomba en sec.
- Maintain proper water chemistry in your pool.
- The filter tank operates under pressure. Do not attempt to open the filter or service the multi-port valve while the pump is running.
3. Contingut del paquet
En desembalar, comproveu que tots els components siguin presents i que no estiguin danyats.
- FLUIDRA MONOBLOC Galactic D.500 Filter Tank
- 1/2CV Pool Pump
- Multi-port Valve (Top-mount or Side-mount, depending on model variant)
- Manòmetre
- Connecting Hoses/Pipes
- Placa base
- Manual d'usuari (aquest document)

Figure 1: Complete FLUIDRA MONOBLOC Galactic D.500 T/Z 1/2CV Pool Filter System.
4. Configuració i instal·lació
Proper installation is critical for the performance and safety of your filter system.
- Ubicació: Place the filter system on a firm, level surface, preferably concrete, as close to the pool as possible. Ensure adequate ventilation and protection from direct sunlight and extreme weather.
- Muntatge:
- Attach the pump to the base plate.
- Place the filter tank onto the base plate.
- Connect the pump to the filter tank inlet.
- Install the multi-port valve onto the top of the filter tank, ensuring a secure, watertight seal.
- Attach the pressure gauge to the multi-port valve.
- Filter Media (Sand) Installation:
- Remove the multi-port valve from the tank.
- Cover the standpipe opening inside the tank to prevent sand from entering.
- Carefully pour the recommended amount and grade of filter sand (e.g., #20 silica sand) into the tank. Refer to the specifications for the correct quantity.
- Level the sand and remove the standpipe cover.
- Reinstall the multi-port valve, ensuring it is properly seated and sealed.
- Connexions de fontaneria:
- Connect the pool skimmer/main drain line to the "PUMP" port on the multi-port valve.
- Connect the pool return line to the "RETURN" port on the multi-port valve.
- Connect a waste line to the "WASTE" port on the multi-port valve, directing it to an appropriate drainage area.
- Assegureu-vos que totes les connexions estiguin estancades i sense fuites.
- Connexió elèctrica:
- Connect the pump to a properly grounded electrical outlet or circuit, protected by a Ground Fault Circuit Interrupter (GFCI).
- Assegureu-vos que el voltage and frequency match the pump's requirements.

Figura 2: posterior view of the filter system, showing pump and hose connections.
5. Instruccions de funcionament
The multi-port valve controls the flow of water through the filter system. Always turn off the pump before changing the valve position to prevent damage.
Multi-Port Valve Positions:
- FILTRE: Normal filtering operation. Water flows through the sand bed, trapping debris, and returns to the pool. This is the most common setting.
- CONTRENAT: Used to clean the filter sand. Water flows in reverse through the sand bed, dislodging trapped debris, and is directed out the waste port. Backwash until the sight glass (if present) runs clear.
- ESbandida: Used after backwashing to settle the sand bed and flush any remaining dirty water to waste. Run for 30-60 seconds.
- RESIDUS/DESGUÀS: Bypasses the filter and sends water directly out the waste port. Useful for vacuuming heavy debris directly to waste or lowering pool water level.
- RECIRCULATE/BYPASS: Evita el filtre i fa circular l'aigua directament de tornada a la piscina. Útil per distribuir productes químics sense filtrar.
- CLOSED/WINTERIZE: Closes all ports to the filter. Use for servicing the pump or filter, or for winterizing the system. Never operate the pump in this position.
Inici del sistema:
- Ensure the pool is filled to the proper level.
- Prime the pump if necessary (fill the pump basket with water).
- Ajusteu la vàlvula multiport a "RETRANTAT A CONTRACORRENTAT".
- Turn on the pump and backwash for 2-3 minutes or until the water in the sight glass is clear.
- Apagueu la bomba.
- Ajusteu la vàlvula multiport a "RINSE".
- Turn on the pump and rinse for 30-60 seconds.
- Apagueu la bomba.
- Set the multi-port valve to "FILTER".
- Turn on the pump. Note the initial pressure gauge reading. This is your clean filter pressure.

Figura 3: Primer pla view of the multi-port valve and pressure gauge.
6. Manteniment
Regular maintenance ensures efficient operation and extends the life of your filter system.
- Rentat a contracorrent: Backwash the filter when the pressure gauge reading is 8-10 PSI (0.5-0.7 bar) above your clean filter pressure, or when pool water appears cloudy.
- Pump Basket Cleaning: Regularly inspect and clean the pump strainer basket. Turn off the pump, close necessary valves, remove the lid, empty debris, and replace.
- Filter Sand Replacement: Filter sand typically lasts 3-5 years, depending on usage and water chemistry. Replace the sand when filtration efficiency decreases despite regular backwashing.
- Hivernització: In cold climates, drain all water from the pump, filter, and plumbing lines to prevent freezing damage. Store the multi-port valve handle in the "WINTERIZE" or "CLOSED" position (if available) or remove it and store indoors.
- Inspecció de fuites: Periodically check all connections for leaks and tighten as necessary.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Low water flow / Low pressure | Clogged skimmer/pump basket, dirty filter sand, air leak in suction line, pump not primed. | Clean baskets, backwash/rinse filter, check for air leaks, prime pump. |
| Aigua tèrbola de la piscina | Dirty filter sand, insufficient filtration time, improper water chemistry, broken laterals inside filter. | Backwash/rinse, run filter longer, balance chemicals, inspect laterals (requires draining sand). |
| Fuita d'aigua per la vàlvula | Worn O-rings/gaskets, loose connections. | Inspect and replace O-rings/gaskets, tighten connections. |
| La bomba no funciona | No power, tripped breaker/GFCI, motor issue. | Check power supply, reset breaker/GFCI, consult a qualified electrician. |
8. Especificacions
| Característica | Detall |
|---|---|
| Model | MONOBLOC Galactic D.500 T/Z 1/2CV |
| Número de model de producte | 74473 |
| Marca | FLUIDRA |
| Potència de la bomba | 1/2 CV |
| Diàmetre del filtre | D.500 (500mm) |
| Dimensions (L x A x A) | 45 x 24 x 36 cm |
| Pes | 2.5 kg |
| Tipus de suport de filtre | Sand (not included) |
9. Garantia i Suport
For detailed warranty information and technical support, please refer to the official FLUIDRA weblloc web o contacteu directament amb el seu servei d'atenció al client. Conserveu el rebut de compra com a comprovant de compra per a qualsevol reclamació de garantia.
Fabricant: FLUIDRA
Número de model: 74473
ASIN: B0CPFJN6KP