The Wayne WAPC250 is the best pool cover pump for a winter cover in most yards. Wayne’s iSwitch sensor turns it on at 2-1/8 inches of water and off at 3/4 inch, and the pump comes with a 25-foot cord plus a 25-foot pull-to-shore rope for setting it in the low spot and hauling it back. That suits a cover that fills with rain while nobody is watching.
Choose the Little Giant APCP-1700 for a 1-inch discharge line, the Superior Pump 92395 for the earliest published automatic start, and the manual Little Giant PCP550 only when someone will stay with it. All four carry 25-foot cords, and none is a set-and-forget winter device: Wayne’s and Little Giant’s manuals both say to bring the pump indoors before water freezes.
| Pump | Best for | Deciding facts | Main compromise |
|---|---|---|---|
| Wayne WAPC250 | Most winter covers | Sensor on at 2-1/8 in., off at 3/4 in.; 1/4 HP; 25-ft cord and pull-to-shore rope; 3,000 GPH max on a 1-1/4-in. drain hose | Headline flow assumes the larger drain hose |
| Little Giant APCP-1700 | Large covers with a 1-in. line | 1/3 HP; about 1,700 GPH through 1-in. tubing; starts near 2-1/2 in., stops near 1 in.; 25-ft cord | Manual shows about 500 GPH through a 50-ft garden hose |
| Superior Pump 92395 | Earliest automatic start | Float switch starts near 1-1/2 in.; 2,100 GPH max; 1-in. NPT or garden hose adapter; 25-ft cord | Thinner published operating detail |
| Little Giant PCP550 | Supervised draining of smaller covers | Manual switching; 550 GPH at 0 ft and 400 GPH at 3 ft of lift; 58 W; 25-ft cord | Someone must watch it and unplug it |
Flow and switch levels are the makers’ published figures, not measured results.
Which is the best pool cover pump for a winter cover?
For most winter covers, the best pool cover pump is an automatic model whose cord reaches the cover’s low spot from a GFCI-protected outlet without an extension cord, paired with a discharge hose you can route away from the pool and a plan to bring it inside before water freezes. On those terms, the Wayne WAPC250 leads.
The next three sections turn those conditions into numbers you can check before comparing flow ratings.
What 1 inch of rain puts on the cover
Water on a winter cover comes mainly from rain and melt over the pool’s water surface, where the cover sags. A usable estimate:
Gallons = water-surface area (square feet) x inches of rain x 0.623
The constant is 7.48 gallons per cubic foot divided by 12. It ignores rain on the overlap and any snow, so treat the result as a floor. The last column applies the PCP550’s published 550 GPH (0 feet of lift) and 400 GPH (3 feet) to show how long someone would stand by per inch of rain.
| Pool water surface | Area | Gallons per inch of rain | Attended run time with a PCP550 |
|---|---|---|---|
| 15-ft round | 177 sq ft | 110 | about 12-17 min |
| 18-ft round | 254 sq ft | 159 | about 17-24 min |
| 24-ft round | 452 sq ft | 282 | about 31-42 min |
| 16 x 32 ft rectangle | 512 sq ft | 319 | about 35-48 min |
| 20 x 40 ft rectangle | 800 sq ft | 499 | about 54-75 min |
A manual pump is reasonable on the smaller round covers. On a 16-by-32 or larger cover, attended time approaches an hour per inch, and a weekend storm can deliver several inches while the house is empty. That is the case for an automatic pump.
Will a 25-foot cord reach the low spot?
Little Giant’s APCP-1700 manual says not to use an extension cord and to provide a properly located outlet instead, on a circuit with ground-fault (GFCI) protection. Wayne’s WAPC250 materials also point to a GFCI outlet, so confirm that in its manual. Treat each pump’s 25-foot cord as a hard limit and measure the path the cord will really take:
Cord needed = A (outlet to the pool edge, along the ground) + B (climb over the wall or coping) + C (edge to the low spot, along the sagging cover) + D (slack so the cord is never pulled tight)
Suppose a 24-foot round above-ground pool with a 52-inch wall and a GFCI outlet 8 feet from the wall. A is 8 feet, B is about 4.3 feet, C is about 12 feet to the center plus a little for the sag, and D is 1 foot. The total is about 25.3 feet, so none of these pumps can sit at the center of that cover without a closer outlet.
Suppose instead a 16-by-32-foot in-ground pool with an outlet 10 feet from the coping: 10 + about 0.5 + about 8 (long side to the middle) + 1 = about 19.5 feet, which leaves margin.
If your total tops 25 feet, the fix is a properly located outlet installed by a qualified electrician, not an extension cord or a pump parked beside the puddle. After the first rain, mark where water actually gathers; it is often, but not always, near the middle.
Why the headline GPH numbers do not compare
Each maker publishes flow under different conditions, so the biggest number is not automatically the fastest pump:
- Wayne rates the WAPC250 at a 3,000 GPH maximum using a 1-1/4-inch drain hose.
- Little Giant rates the APCP-1700 at about 1,700 GPH (some listings print 1,745) through a 1-inch inside-diameter tube with friction losses neglected. Its manual adds that a 50-foot, 3/4-inch garden hose cuts that to roughly 500 GPH.
- Superior lists the 92395 at a 2,100 GPH maximum.
- Little Giant gives the manual PCP550 two points: 550 GPH at 0 feet of lift and 400 GPH at 3 feet.
The APCP-1700 example is the one to remember. Through that garden hose, the pump keeps about 29 percent of its rated flow (500 divided by 1,700). At roughly 500 GPH, the 282 gallons from 1 inch of rain on a 24-foot round pool need about 34 minutes of pumping; at the 1,700 GPH rating they need about 10. The PCP550’s figures show the same effect from height: 3 feet of lift costs 27 percent of its 0-foot rating.
So choose the hose route before the pump: a short, larger-diameter line running downhill to a spot where water cannot flow back toward the pool or the house. A cover pump’s rating also says nothing about the circulation pump that runs the filter in summer; if that system has flow trouble, the pool pump low-pressure decision map covers the separate diagnosis.
1. Wayne WAPC250: best automatic pump for most winter covers
Identity check: the Wayne WAPC250 Automatic Pool Cover Pump is model WAPC250, and several retail listings pair it with part number 57729-WYNP. ManualsLib also hosts a manual for a similarly named Wayne WPCP250, so match “WAPC250” letter for letter.
Why it wins: the iSwitch senses the presence of water instead of riding a float. Wayne says it switches on at or above 2-1/8 inches and off at or below 3/4 inch, a lower published shutoff than the APCP-1700’s roughly 1 inch, so a shallower puddle remains between cycles. The manual also describes a protection circuit that shuts the motor down if debris buildup or ice locks the impeller. The 1/4 HP pump comes with a 25-foot cord and a 25-foot pull-to-shore rope for placing and retrieving it from the deck.
The compromise: the 3,000 GPH maximum assumes a 1-1/4-inch drain hose. With a garden hose, confirm the adapter in the box and expect less flow. Wayne also describes freeze protection in the iSwitch, yet its manual says to remove the pump from service and store it indoors once temperatures drop below freezing. Follow the removal instruction.
Buy it if: you want the cover drained automatically between checks, you can run a drain hose or short garden hose to a good discharge spot, and someone can pull the pump before freezes.
Skip it if: the cord path from a GFCI outlet exceeds 25 feet, or the pump would have to stay out through weeks of freezing weather.
Strongest alternative: the Superior Pump 92395, if an earlier start matters more to you than the lower published shutoff.
2. Little Giant APCP-1700: best with a 1-inch discharge line
Identity check: the Little Giant APCP-1700 Automatic Pool Cover Pump 577301 is the full identity: APCP-1700 is the model and 577301 the part number. Listings print either 1,700 or 1,745 GPH for the same pump. Its replacement garden hose adapter is part 177343.
Why it fits: a 1/3 HP motor, compared with the Wayne’s 1/4 HP, and a 1-inch FNPT discharge with a 3/4-inch garden hose adapter. A 1-inch line to the drain point matches the basis of Little Giant’s rating, which suits big covers in a rainy fall.
The compromise: the owner’s manual describes an automatic start at about 2-1/2 inches of water and a stop at about 1 inch, while some retail pages round the start to 2 inches. Either way, it leaves more water behind than the Wayne, and the manual carries cold-weather cautions, so read them before relying on those levels near freezing. The full Little Giant APCP-1700 review works through hose choices and the freeze rules in detail.
Buy it if: the cover is large, you can route a 1-inch line, and you want the bigger motor.
Skip it if: a long garden hose is the only practical route, or you want the lowest possible residual puddle.
Strongest alternative: the Wayne WAPC250 for its lower published shutoff and included retrieval rope.
3. Superior Pump 92395: earliest published automatic start
Identity check: for the Superior Pump 92395 Automatic Pool Cover Pump, match 92395 together with the 2,100 GPH rating and the 25-foot cord. Do not confuse it with Superior’s 91250, a 1/4 HP utility pump sold with a 10-foot cord that is too short for most covers.
Why it fits: an internal vertical float switch that Superior says starts the pump in about 1-1/2 inches of water, the earliest published start among these automatics. It offers a 1-inch NPT discharge or a 3/4-inch garden hose adapter, a 2,100 GPH maximum, and a 25-foot cord.
The compromise: the sources compiled here carry less operating detail for the 92395, including no freeze instruction, so read the manual in the box and apply the same indoor-storage caution. Listings also disagree on the warranty term; confirm it before ordering.
Buy it if: you want float-switch automation that reacts to a shallow puddle, with pipe and hose options.
Skip it if: you want the most thoroughly documented winter guidance.
Strongest alternative: the Wayne WAPC250.
4. Little Giant PCP550: best manual pump for supervised draining
Identity check: the Little Giant PCP550 Manual Pool Cover Pump carries part number 14942702. Little Giant files it with its manual cover pumps, while at least one retail title mentions an automatic start. Trust the maker’s category and plan for manual use.
Why it fits: Little Giant lists 58 watts, 550 GPH at 0 feet of lift and 400 GPH at 3 feet, a 3/4-inch garden hose connection, a removable intake screen, and a 25-foot cord. By the rain-load table, an inch of rain on a 15- or 18-foot round cover means roughly 12 to 24 minutes of attended pumping.
The compromise: it cannot respond to overnight rain; someone has to set it in the puddle, stay with it, and unplug it.
Buy it if: the cover is small, someone is usually home during storms, and you want a light, simple pump.
Skip it if: the cover is large or the house is often empty during rainy stretches.
Strongest alternative: any of the three automatics above.
Freeze rules that override every pick
In the manuals compiled for this guide, two of the four makers give clear winter instructions, and they point the same way:
- Wayne WAPC250: when temperatures drop below freezing, remove the pump from service and store it indoors. The locked-impeller circuit is a motor safeguard, not permission to leave it out.
- Little Giant APCP-1700: remove the pump when conditions will cause water to freeze. The manual notes that water left in the discharge hose can freeze and block the outflow.
- Superior 92395 and Little Giant PCP550: no freeze instructions surfaced, so follow each included manual and treat a freezing forecast the same way.
A workable plan: run the pump through fall rain; before a forecast freeze, unplug it, lift it off the cover, drain the hose, and bring both indoors; return it when liquid water collects again. It cannot move ice or snow. If pool chemicals share the garage or shed, keep the pump and hose off their shelf, following the chemical storage and separation guide .
Setup checks before the first storm
- Keep debris off the pump. Leaves can block intake screens and, on the Wayne, the water sensor; its manual includes a step for clearing debris from the sensor. Clean the pool before closing with a deep leaf rake such as the one in the ProTuff pool net review , check the pump after windy days, and never walk on the cover to reach it.
- Use the right cover. A properly fitted winter cover collects water where the pump can reach it; size it with the overhang check in the above-ground winter cover guide . A solar blanket on a reel, such as the one in the Rocky’s 3A reel review , is a swim-season product and a different job.
- Plan the discharge. Route the hose downhill, away from the pool, the foundation, and walkways.
- Power only from a GFCI-protected outlet. Follow the manual, and use a qualified electrician for any new or relocated outlet.
Sources consulted
- Wayne WAPC250 product page
- Wayne guidance on winterizing with the WAPC250
- Little Giant APCP-1700 series page
- Little Giant APCP-1700 owner’s manual (ManualsLib copy)
- Little Giant PCP550 product page
- Superior Pump 92395 product page
Specifications and product identities were compiled through web search on September 29, 2026 and should be confirmed on the seller’s page for your exact size, color, and version. This is researched buyer analysis without hands-on testing.
FAQ
Can I leave a pool cover pump on the cover all winter?
Not through freezing weather. Wayne’s WAPC250 manual says to remove the pump and store it indoors when temperatures drop below freezing, and Little Giant’s APCP-1700 manual gives similar removal guidance.
Do I need an automatic pool cover pump?
You need one if the cover collects rain while nobody is home to watch it. A manual pump such as the PCP550 has no automatic switch, so someone has to place it, watch it, and unplug it.
Can I use an extension cord with a pool cover pump?
Little Giant’s APCP-1700 manual says not to use one and to provide a properly located, GFCI-protected outlet. If the cord cannot reach, have a qualified electrician add an outlet.
How much water does 1 inch of rain put on a pool cover?
Roughly the water-surface area in square feet times 0.623 gallons. A 24-foot round pool collects about 282 gallons per inch over its water area.