Should I Drain My Above Ground Pool In The Winter?

When It Makes Sense

• Good fit: You own a soft-sided, inflatable, or temporary above-ground pool that is not engineered to carry a full water load through freezing temperatures. Draining it, drying it, and storing it indoors—or folding and packing it per the manufacturer’s instructions—helps prevent vinyl stretching, seam stress, and cracking from freeze-thaw cycles. It also removes the need for winter chemicals and monitoring for a pool that cannot be used for several months.
• Good fit: You need to perform maintenance that is only practical with an empty pool, such as replacing a torn liner, treating rust on steel walls, tightening frame hardware, repairing joints, or deep-cleaning calcium and algae stains from the floor. Winter downtime offers a natural window to drain, inspect, and restore the structure before refilling and balancing the water for the next swim season.

When You Should Avoid It

• Warning sign: You have a framed above-ground pool with a flexible vinyl liner and metal or resin walls in a region with hard freezes or heavy snow. The water inside the pool normally exerts outward pressure that helps the walls resist wind gusts, snow load, and minor ground movement. Removing most or all of that water can allow the liner to shrink and crack, the walls to flex or buckle, and groundwater pressure to lift or displace an empty liner.
• Warning sign: You do not have a reliable winter cover, air pillow, or drainage plan to keep rain and melting snow out of the empty basin. Precipitation that collects in a drained pool can add significant weight, freeze into a solid sheet, pull or tear the liner, and strain the frame and cover. It can also create a slip or fall hazard and make spring reopening far more difficult.

Pros and Cons

Pros

• Draining removes the need for ongoing winter chemical balancing, periodic shocking, and mid-winter water testing, which can reduce both cost and effort if the empty pool is properly covered or stored.
• An empty pool gives you full access to inspect the liner for holes, clean stains and scale from the floor and walls, treat early rust on steel components, and complete repairs that are awkward or impossible with water in place.

Cons

• Full drainage increases structural risk for most framed above-ground pools. The retained water provides internal support and helps equalize pressure from wind, snow, and groundwater. Without it, the liner may shrink, the walls may deform or collapse under load, and a high water table can cause the empty liner to float or shift out of position.
• Refilling in the spring requires a large volume of water, significant time, and a full restart of the chemical balancing process. Depending on local water rates and the size of the pool, this can erase any winter savings and may add strain to household budgets or local water-use considerations.

Decision Checklist

• What do the manufacturer’s winterization instructions and warranty terms say? Many framed above-ground pool warranties explicitly discourage complete drainage, so the owner’s manual should be your first reference.
• How cold does it get, and what is the groundwater and snow load like where you live? Deep frost, heavy snow, and a high water table raise the risk of liner and frame damage when a pool is left empty.
• If you drain, do you have a plan to prevent precipitation accumulation—such as a taut winter cover, an air pillow, or periodic pumping—and are you prepared for the cost and effort of refilling, heating, and rebalancing the water in spring?

Alternatives to Consider

For most framed above-ground pools in climates with freezing temperatures, the safer alternative is a traditional winterization rather than a full drain. This usually means cleaning the pool, balancing the water, lowering the level only to the bottom of the skimmer or return jet, blowing out hoses and filter lines, adding winterizing chemicals, installing a pool pillow, and covering the pool with a fitted winter cover. A partial drain combined with a solid cover and regular removal of snow and standing water on top of the cover often gives the structural protection of retained water without the maintenance burden of a fully operating pool. In mild climates where temperatures rarely drop below freezing, running the pump during cold snaps and using a cover can allow year-round water retention. If you are unsure about any step, hiring a pool closing professional is another lower-risk option.

Final Recommendation

In general, you should not fully drain a framed above-ground pool solely to get through winter unless your manufacturer recommends it or you need the pool empty for repairs. Keeping water in the pool and winterizing it properly is usually the lower-risk choice because the water supports the walls and liner against wind, snow, and ground pressure. Drain only when you have a soft-sided or temporary pool, when the manufacturer instructs it, or when you have a specific maintenance reason and a clear plan for cover, drainage, and spring refill. Because local climate, soil conditions, warranty terms, and pool designs vary, consult your owner’s manual and, for high-stakes or uncertain situations, a qualified pool professional before making a final decision.