CIPU 12" Sand Filter Pump System for Above-Ground Pools — 0.35HP 115V, 4-Way Valve, 42 lb Sand Capacity

The CIPU 12-inch Sand Filter Pump System is a compact, all-in-one filtration kit for above-ground pools up to 7,500 gallons, combining a 12-inch sand tank, 0.35HP 115V pump and a 4-way multiport valve.

If you need straightforward mechanical filtration for a small to mid-size above-ground pool, this CIPU kit gives the essential components to circulate and clean water using #20 silica sand (sand sold separately). The system pairs a space-saving filter tank that accepts 42 lb of sand with a prefilter pump that includes a removable strainer basket and clear lid for quick inspections. A 4-way valve lets you switch between normal filtration, backwash, rinse and winterizing positions without extra plumbing parts.

How does this system keep my pool water clear?

The pump draws pool water through the strainer basket to catch leaves and larger debris, then pushes the flow into the sand tank where particles are trapped in the sand bed. During normal operation use the FILTER position; when the pressure rises, you can BACKWASH to flush accumulated dirt out of the sand.

• 0.35HP 115V pump supplies consistent circulation for pools up to 7,500 gallons.
• 12-inch tank accepts 42 lb of #20 silica sand for mechanical filtration.
• Transparent pump lid and removable basket speed visual checks and cleaning.
• Backwash cycle restores filter performance without disassembly.

What maintenance does the CIPU filter/pump require?

Routine care is simple: monitor the system pressure, empty the pump basket as needed, and backwash when pressure climbs above the clean baseline. Each season check O-rings, hose fittings and the drain plug to keep seals tight and prevent leaks.

• Inspect and clean the strainer basket weekly or after heavy debris loads.
• Backwash the sand tank when pressure rises above the starting pressure.
• Verify and lightly lubricate O-rings; avoid overtightening clamps or adapters.
• Drain the unit and set valve to WINTER position for seasonal storage.

How do I install and set up the unit safely?

Place the unit on a stable, level surface near the pool with a suitable electrical outlet at 115V. Fill the filter with the recommended 42 lb of #20 silica sand (not included), connect hoses securely, and always switch the pump off before changing the multiport valve position to avoid damage.

• Confirm electrical supply is 115V and has appropriate grounding.
• Add 42 lb of #20 silica sand to the filter tank before starting.
• Check and seat O-rings, clamps and fittings for a leak-free connection.
• Prime the pump and run through RINSE after initial backwash.

What are the system's capacity and limitations?

This CIPU kit is sized for small to medium above-ground pools—recommended for pools up to 7,500 gallons or roughly 18-foot diameter. It is not intended for large in-ground pools or heavy commercial use; filter sand is required and must be purchased separately.

• Suitable for above-ground pools up to 7,500 gallons or 18 ft diameter.
• Filter tank holds 42 lb of #20 silica sand (sand not included).
• 0.35HP motor designed for residential pool circulation demands.
• 4-way valve supports FILTER, BACKWASH, RINSE and WINTER settings.

Who is this for: The CIPU 12-inch Sand Filter Pump System is aimed at homeowners with small to mid-size above-ground pools who want a reliable, easy-to-service sand filtration solution. Choose this set if you prefer mechanical sand filtration, need a compact footprint, and want built-in backwash and winterizing functions without complex installation. If you own a larger in-ground pool or require higher flow rates, consider a larger-rated system.