1. Introducción
The Bestway Flowclear 800 Gallon Sand Filter Pool Pump (Model 58516E) is designed to provide efficient and environmentally friendly filtration for above-ground swimming pools. This system utilizes silica sand to trap debris, offering a cost-effective alternative to traditional filter cartridges. It is compatible with above-ground pools ranging from 300 to 4,800 gallons.
2. Información importante de seguridad
Always read, understand, and follow all instructions carefully before installing and using this product. Failure to follow these warnings and instructions can result in property damage, serious injury, or death.
- Always disconnect the pump from the power supply before performing any work on the product.
- Asegúrese de que la bomba esté colocada sobre una superficie sólida y nivelada.
- No entierre el cable eléctrico. Colóquelo en un lugar donde no pueda dañarse con cortadoras de césped, cortasetos u otros equipos.
- Este aparato no está diseñado para ser utilizado por personas (incluidos niños) con capacidades físicas, sensoriales o mentales reducidas, o con falta de experiencia y conocimientos, a menos que hayan recibido supervisión o instrucciones sobre el uso del aparato por parte de una persona responsable de su seguridad.
- Se debe supervisar a los niños para garantizar que no jueguen con el aparato.
- The pump must be supplied by an isolating transformer or supplied through a residual current device (RCD) having a rated residual operating current not exceeding 30 mA.
- The appliance must be positioned at least 2 meters (6.56 feet) away from the pool.
3. Contenido del paquete
Verify that all components listed below are included in your package. If any parts are missing or damaged, please contact Bestway customer service.
- 1 x Sand Filter Pump Unit (Model 58516E)
- 1 dispensador ChemConnect
- Hoses and Connectors (as required for assembly)
- Manómetro
- Top Flange Clamp
- Pre-filter Strainer
- GFCI Plug (110-120 Volt)
- Manual de instrucciones

Image: Bestway Flowclear 800 Gallon Sand Filter Pool Pump with all included accessories laid out.
4. Configuración e instalación
Follow these steps for proper assembly and installation of your sand filter pump.
4.1. Relleno de arena
- Place the filter tank on a solid, level surface near your pool.
- Remove the multi-port valve (top part) from the filter tank.
- Insert the standpipe (with laterals attached) into the center of the filter tank. Ensure it is seated correctly at the bottom.
- Carefully pour the recommended amount of #20 silica sand (0.45-0.85 mm, approximately 20 pounds) into the filter tank. Ensure the sand level is between the MIN and MAX indicators on the standpipe.
- Level the sand and remove any debris from the tank opening.
- Reattach the multi-port valve to the filter tank, ensuring a secure and watertight seal.

Image: Bestway Flowclear Sand Filter Pump connected to an above ground pool, illustrating the setup.
4.2. Conexiones de manguera
- Connect the pool's return line to the "RETURN" port on the multi-port valve.
- Connect the pool's skimmer/suction line to the "PUMP" port on the multi-port valve.
- Connect the pump's outlet to the "PUMP" port on the multi-port valve.
- Connect a waste hose (not included) to the "WASTE" port on the multi-port valve, directing it to a suitable drainage area.
- Asegúrese de que todas las conexiones estén firmes y seguras para evitar fugas.
Video: Official Bestway video demonstrating the setup and connection of the Flowclear Sand Filter Pump to an above-ground pool.
5. Instrucciones de funcionamiento
The multi-port valve allows for various operating modes. Always ensure the pump is OFF before changing valve settings.
5.1. Multi-Port Valve Functions
- FILTRAR: For normal filtering of pool water.
- RESACA: For cleaning the sand filter. Water flows in reverse through the filter and out the waste port.
- ENJUAGUE: For initial startup cleaning and leveling the sand bed after backwashing.
- DESPERDICIAR: For bypassing the filter and draining water directly from the pool out the waste port.
- CERRADO: Cierra todo el flujo hacia el filtro y la bomba.
- RECIRCULAR: For circulating pool water without filtering.
- INVIERNO: For winterizing the pump.

Imagen: Primer plano view of the multi-port valve, showing the different operational settings.
5.2. Initial Startup (Backwash & Rinse)
- Ensure all hoses are correctly connected and the pool is filled to the appropriate level.
- Turn the multi-port valve to the RESACA posición.
- Turn on the pump. Run for 2-3 minutes or until the water flowing out of the waste port is clear.
- Apague la bomba.
- Turn the multi-port valve to the ENJUAGUE posición.
- Encienda la bomba. Déjela funcionar durante 30 a 60 segundos.
- Apague la bomba.
- Turn the multi-port valve to the FILTRAR position. The pump is now ready for normal operation.
5.3. ChemConnect Dispenser
The integrated ChemConnect Dispenser helps maintain proper chemical balance by evenly dispersing chlorine tablets (not included) into the pool water. Follow the chemical manufacturer's instructions for dosage.

Image: The Bestway Flowclear Sand Filter Pump, highlighting the ChemConnect Dispenser.
6. Mantenimiento
El mantenimiento regular garantiza un rendimiento óptimo y la longevidad de su bomba de filtro de arena.
6.1. Backwashing the Filter
Backwash the filter when the pressure gauge indicates a reading in the "RED" zone, or when the pool water becomes cloudy. This typically occurs every 1-2 weeks depending on pool usage and debris.
- Apague la bomba.
- Turn the multi-port valve to the RESACA posición.
- Turn on the pump. Run for 2-3 minutes or until the water flowing out of the waste port is clear.
- Apague la bomba.
- Turn the multi-port valve to the ENJUAGUE posición.
- Encienda la bomba. Déjela funcionar durante 30 a 60 segundos.
- Apague la bomba.
- Turn the multi-port valve to the FILTRAR posición.
- Encienda la bomba para reanudar la filtración normal.
6.2. Cleaning the Pre-Filter Strainer
The pre-filter strainer collects larger particles to protect the pump impeller. Check and clean it regularly.
- Turn off the pump and close all valves to the pool.
- Unscrew the pre-filter cover.
- Remove and clean the strainer basket with water.
- Replace the strainer basket and secure the cover. Ensure the O-ring is properly seated for a watertight seal.
- Open the valves and turn on the pump.
6.3. Reemplazo de arena
Silica sand typically needs to be changed once every 3 years, depending on usage and water quality.
7. Solución de problemas
Consulte esta sección para conocer problemas comunes y sus soluciones.
- Bajo caudal de agua: Check for clogged pre-filter strainer, dirty sand filter (perform backwash), or obstructions in hoses. Ensure all valves are fully open.
- Fugas de agua: Check all hose connections for tightness. Inspect O-rings and gaskets for damage or improper seating.
- La bomba no arranca: Ensure the GFCI plug is reset and receiving power. Check for tripped circuit breakers. Verify the timer setting if applicable.
- Agua turbia de la piscina: Perform backwash and rinse cycle. Check chemical balance of the pool water. Ensure pump is running for adequate duration daily.
- Pressure Gauge in Red Zone: Indicates a dirty filter. Perform backwash and rinse cycle immediately.
8. Especificaciones
| Característica | Detalle |
|---|---|
| Marca | Mejor manera |
| Número de modelo | 58516E |
| Dimensiones del producto | 14.17" de largo x 14.17" de ancho x 20.67" de alto |
| Peso del artículo | 14.08 libras |
| Caudal máximo | 36.67 galones por minuto (800 GPH) |
| Volumentage | 120 voltios |
| Fuente de poder | Corded Electric with GFCI Plug |
| Volumen de piscina compatible | 300 a 4,800 galones |
| Tamaño de arena requerido | #20 Silica Sand, 0.45-0.85 mm, approx. 20 lbs (Sand not included) |
9. Garantía y soporte
Bestway products are manufactured to the highest quality standards. For specific warranty information, please refer to the warranty card included in your product packaging or visit the official Bestway website. For technical support, troubleshooting assistance, or to order replacement parts, please contact Bestway customer service directly.
Puede encontrar más información y datos de contacto en el Tienda Bestway.





