Submersible Pumps

Collection: Submersible Pumps

25 products

Submersible Pumps

Drain, dewater, and protect your pool with submersible pumps from Little Giant, Danner, Franklin Electric, and Pentair. PST Pool Supplies stocks pool cover pumps, high-volume drainage pumps, and utility sump pumps for inground and above-ground pool applications — starting from $64.80.

Submersible pumps for pool use fall into three categories: pool cover pumps (remove rainwater accumulation from winter pool covers), pool drainage pumps (drain or partially drain the pool for maintenance or winterization), and utility sump pumps (remove water from equipment pits, basements, or flood areas). The key products in this collection: Danner Cover Care pumps — the Model 300 (18W), Model 500 (45W), and Auto 360 (360 GPH, automatic) — are compact, lightweight cover pumps designed to sit on the pool cover surface and pump accumulated rainwater and snowmelt off the cover before it stresses the cover or collapses into the pool. The Cover Care Auto 360 adds automatic float-switch operation — it starts and stops without manual intervention as water accumulates. All Danner cover pumps use 3/4\" garden hose thread (GHT) discharge for simple hose attachment. Little Giant submersible pumps span a wide range: the PE-1 (170 GPH, 36W) and PES-130-PW (130 GPH, 11W) are compact low-output pumps for small drainage tasks; the 2E-N/2E-38N (300 GPH, 100W) handles mid-volume drainage; the 3E-34N (670 GPH, 200W) and 6-CIM-R (46 GPM, 115V, 25' cord) handle larger drainage volumes; the 6EC-CIA-SFS and 6EC-CIM sump pumps (0.33 hp, 53 GPM, handles 1/2\" solids) are heavy-duty pumps for pool drainage and dewatering with solid-handling capability. The Franklin Electric 1700 GPH submersible provides high-volume drainage. The Pentair Sta-Rite 0.5hp stainless submersible (115V, thermal protection, 15' cord) is the premium option for demanding dewatering applications.

Selecting the right pump: for pool cover pumping, any Danner Cover Care model handles typical residential covers — the Auto 360 is recommended for covers that accumulate water faster than they can be manually monitored. For pool drainage, calculate the gallons to remove and desired drain time to select GPH output; a 20,000-gallon pool drained in 8 hours requires approximately 2,500 GPH. For equipment pits with debris risk, the Little Giant sump pumps with solids-handling capability prevent clogging.

Shop submersible pumps at PST Pool Supplies and keep your pool cover clear and your pool properly maintained through every season.

Frequently Asked Questions

How do I choose the right pool cover pump?
Pool cover pump selection depends on cover size, typical rainfall accumulation rate, and whether you want automatic operation: Output (GPH) — for most residential covers (16'x32' to 20'x40'), a pump in the 300–500 GPH range clears a typical rain event in 1–3 hours. The Danner Model 300 (18W) handles light accumulation; the Model 500 (45W) and Cover Care Auto 360 (360 GPH) handle heavier rainfall areas. Automatic vs. manual — the Danner Auto 360 includes a built-in float switch that activates when water reaches a preset depth and shuts off when drained. This is strongly recommended if the cover is not checked daily — an unmonitored cover with heavy water accumulation can collapse into the pool, damaging the cover, pool liner, and potentially the pool structure. Manual pumps require you to start and stop them. Discharge — all Danner Cover Care pumps use 3/4" GHT (garden hose thread) discharge — connect any standard garden hose to direct water away from the pool area. Place the pump on the cover surface (not through it) in the lowest point where water pools.
Can I use a submersible pump to drain my pool completely?
Yes — submersible pumps are the standard method for pool drainage. The key considerations: (1) Drainage rate — a 20,000-gallon pool at 2,500 GPH drains in about 8 hours; at 1,400 GPH (Danner ProLine), it takes 14+ hours. Size the pump to the time available. (2) Discharge location — most municipalities require pool water to be discharged to a sanitary sewer cleanout or permitted drainage point, not into storm drains or onto neighboring properties. Check local regulations. Neutralize chlorine with sodium thiosulfate before discharging to prevent environmental harm. (3) Hydrostatic pressure — for inground pools, never drain completely if the water table is high; an empty concrete or fiberglass pool can pop out of the ground from groundwater pressure. Drain to 12–18" of water if the water table is a concern, or work quickly if full drainage is necessary. (4) Solids handling — for pools with sediment, algae, or debris on the bottom, use the Little Giant 6EC-CIM or 6EC-CIA-SFS which handle 1/2" solids — standard utility pumps will clog on heavy debris.
What is the difference between a sump pump and a submersible drainage pump?
In pool contexts, both terms describe pumps that submerge in water to move it — the distinction is in design purpose and solids-handling capability: Sump pumps (like the Little Giant 6EC-CIA-SFS and 6EC-CIM) are designed for continuous duty in sump pits — they have robust motors, thermal protection, and can handle small solids (1/2" for the 6EC series). They are appropriate for heavy-duty pool drainage, equipment pit dewatering, and any application with potential debris. Submersible utility/drainage pumps (like the Little Giant PE-1, 2E-N series) are lighter-duty pumps designed for clean or lightly contaminated water — they have lower solids tolerance and are better suited for clear water drainage, cover pumping, or spa draining. Cover pumps (Danner Cover Care series) are a subcategory of submersible pumps specifically designed to sit on a pool cover surface — they are compact, lightweight, and optimized for the thin-film water removal task rather than high-volume drainage. For pool drainage where the bottom has algae or sediment, always choose a solids-handling sump pump. For clean-water tasks like spa draining or cover pumping, a standard submersible utility pump is appropriate.
How do I winterize my pool using a submersible pump?
Submersible pumps are essential for pool winterization in freeze-prone climates: (1) Lower the water level — for inground pools, use a submersible pump to lower the water 12–18" below the return jets and skimmer opening (exact level depends on your winterization method — skimmer winterization requires water below the skimmer bottom; plug winterization can leave water higher). Attach a hose to the pump's discharge and direct to an approved drainage point. (2) Blow out the lines after draining to the target level — a submersible pump does not blow out plumbing lines; you need a dedicated blower or shop vac in blow mode for that step. (3) Install the cover — once lines are blown and plugged, install the winter cover and place the cover pump on top. (4) Run the cover pump automatically through winter — the Danner Auto 360 will handle rain and snowmelt accumulation without manual intervention. Check and empty the cover pump discharge periodically in heavy rain seasons. For above-ground pools: submersible pumps lower the water 4–6" below the return fitting, allowing the returns and skimmer to be plugged before the cover is installed.