9 Essential Supplies for Opening Your Inground Pool for Summer

The weather is warming up, the winter cover is sagging with pooled rainwater, and the urge to jump into clear blue water is getting stronger by the day. Opening an inground pool for the season requires more than just pulling off the tarp and turning on the pump. Armed with the right gear and a systematic approach, anyone can transform a dark, dormant pool into a pristine summer oasis without costly professional help.

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Getting Your Inground Pool Ready for Summer Fun

Pulling back a pool cover in late spring can reveal anything from crystal-clear water to a swampy mess of leaves and algae. Transitioning an inground pool from its winter slumber to a safe, swim-ready state is a precise science that hinges entirely on sequence and equipment. Rushing the process or using subpar supplies often leads to cloudy water, damaged filtration systems, and wasted money on corrective chemicals.

Investing in high-quality opening gear pays off by preventing equipment failure and saving hours of backbreaking labor. A backyard pool represents a significant investment in summer recreation, and the opening phase sets the tone for the entire swimming season. Having the correct tools on hand allows for a smooth, predictable transition that protects the pool’s liner, plumbing, and filtration components.

Submersible Cover Pump – Little Giant APCP-1700

Before touching the pool cover anchors, hundreds of gallons of stagnant winter rainwater and melted snow must be removed from the top of the tarp. Attempting to lift a cover loaded with water can ruin the brass anchors, tear the material, and dump a winter’s worth of decomposing organic debris straight into the clean pool below. A reliable, high-capacity submersible pump handles this heavy lifting automatically, protecting both the cover and the water chemistry beneath it.

The Little Giant APCP-1700 is the industry standard for this task because of its robust build and worry-free automated operation. Its integrated mechanical float switch automatically activates the pump when water reaches three inches and shuts off when the surface is clear, preventing dry-running damage. Driven by a 1/3-horsepower motor, it moves up to 1,700 gallons per hour, clearing even the largest pool covers in a single afternoon.

• Flow Rate: 1,700 GPH at 0 feet of lift, dropping to 1,200 GPH at 10 feet.
• Power Cord: 25-foot heavy-duty cord eliminates the need for unsafe extension cords near wet areas.
• Discharge Connection: Standard 3/4-inch garden hose thread for easy drainage routing.

Keep the intake screen clear of leaves during operation, as heavy debris can restrict water flow and strain the motor. This pump is ideal for homeowners with solid vinyl covers or weighted winter tarps that collect large volumes of standing water. It is not necessary for those using tightly stretched mesh safety covers that allow water to drain directly through into the pool.

Water Test Kit – Taylor Technologies K-2006

Testing the water is the absolute foundation of pool chemistry, especially during a spring opening when chemical levels are completely unbalanced. Guesswork at this stage leads to over-treating, under-treating, and potentially damaging the pool surface or plumbing. Standard test strips often lack the precision needed to dial in critical parameters like calcium hardness and cyanuric acid after months of dilution.

The Taylor Technologies K-2006 is a professional-grade FAS-DPD liquid test kit that delivers unmatched accuracy right at the pool deck. Unlike cheap strips that rely on subjective color matching, this kit uses a titration method where color changes are distinct and easy to read. It measures free and combined chlorine down to 0.2 ppm, pH, acid/base demand, total alkalinity, calcium hardness, and stabilizer levels.

• Testing Method: FAS-DPD liquid titration for high-accuracy readings.
• Reagent Lifespan: Reagents should be replaced annually and stored in a cool, dark place to maintain accuracy.
• Learning Curve: The included waterproof chemistry guide and color-coded instructions make the process easy to master after one or two runs.

This kit is perfect for dedicated pool owners who want precise control over their water chemistry and wish to avoid frequent trips to the pool store. It is not the right fit for casual users who prefer quick, approximate readings and are willing to accept the chemical imbalances that often come with less precise testing methods.

Chlorine Shock – HTH Super Shock Treatment

Winterizing chemicals degrade over the off-season, leaving the pool water vulnerable to microscopic organic contaminants, bacteria, and early-stage algae blooms. A heavy dose of chlorine shock is required at startup to oxidize these contaminants and establish a strong sanitizing baseline. This process, known as reaching breakpoint chlorination, strips away the dullness of winterized water and restores safety.

HTH Super Shock Treatment is a highly concentrated formula containing 56.5% available chlorine derived from Calcium Hypochlorite (Cal-Hypo). It dissolves rapidly and acts fast to destroy bacteria and algae without raising cyanuric acid (stabilizer) levels, which can cause chlorine lock if allowed to climb too high. One single one-pound bag treats up to 13,500 gallons of water, making it incredibly cost-effective for large inground pools.

• Chemical Type: Calcium Hypochlorite (Cal-Hypo) granules.
• Dissolution Rate: High, but pre-dissolving in a bucket of water is recommended for vinyl liner pools to prevent bleaching.
• Application Timing: Always apply shock at dusk to prevent the sun’s UV rays from burning off the chlorine before it can sanitize.

This shock is ideal for traditional chlorine and salt-water inground pools needing a massive sanitizer boost at startup. It is not suitable for pools with exceptionally high calcium hardness levels, as Cal-Hypo adds a small amount of calcium to the water with every application.

Pool Algaecide – Clorox Pool&Spa Algae Eliminator

Chlorine shock kills active algae, but it does not always prevent new spores from taking root in the stagnant, warming water of early spring. An algaecide acts as an insurance policy, disrupting the cellular walls of algae spores to stop blooms before they can cloud the pool. Adding a preventative dose during startup ensures that the water remains clear even as spring temperatures rise.

Clorox Pool&Spa Algae Eliminator features a highly effective, non-foaming copper-free formula that kills and prevents green, mustard, and black algae. Because it does not contain copper, it will not stain pool surfaces or turn swimmers’ hair green, which is a common issue with cheaper, metallic algaecides. Its concentrated formula means a single quart treats up to 24,000 gallons, providing long-lasting protection with minimal product volume.

• Active Ingredient: Poly[oxyethylene(dimethyliminio)ethylene(dimethyliminio)ethylene dichloride] (60% concentration).
• Foam Level: Zero foam, making it safe for pools with high-velocity jets or water features.
• Compatibility: Safe for all pool types, including vinyl, plaster, fiberglass, and saltwater systems.

This product is excellent for pool owners facing stubborn spring algae blooms or those living in hot, humid climates where algae thrives. It is unnecessary for pool owners who maintain perfect, consistent chlorine levels year-round and do not mind running their filtration systems around the clock during startup.

Gasket Lubricant – Magic Lube Jacks Formula

A successful pool opening requires sealing numerous threaded plugs, rubber O-rings, and gaskets across the pump, filter, and chlorinator. Over the winter, these rubber components dry out, crack, and shrink, leading to air leaks on the suction side or water leaks on the pressure side. Applying a dedicated lubricant restores elasticity and ensures an airtight seal, which is critical for maintaining prime on the pool pump.

Magic Lube Jacks Formula is a premium, silicone-based lubricant specifically designed for wet, high-pressure pool environments. Unlike petroleum-based alternatives, which degrade rubber and cause O-rings to swell and rupture over time, this silicone formula is entirely safe for all plastics and rubbers. It is waterproof, non-melting, and exceptionally long-lasting, resisting wash-off from chemically treated water.

• Base Material: 100% silicone lubricant.
• Application: Apply a thin, even coat to O-rings, pump lid gaskets, and winterizing plugs before reassembly.
• Chemical Resistance: Highly resistant to chlorine, bromine, and salt water.

This lubricant is a must-have for any pool owner reassembling pump baskets, filter valves, or chlorinator lids for the season. It is not suitable for applications requiring adhesive properties, nor should it be used on gaskets that specifically require dry installation.

Wall Brush – SweepEase AquaDynamic Pool Brush

Algae, pollen, and scale cling tightly to pool walls and floors, forming a stubborn biofilm that chemicals alone cannot easily penetrate. Physical brushing is mandatory during startup to knock these contaminants loose so they can be filtered out or sanitized by chlorine. Without thorough brushing, algae spores remain anchored in the pores of the pool plaster or vinyl seams, leading to recurring blooms.

The SweepEase AquaDynamic Pool Brush solves the biggest physical challenge of pool maintenance: keeping the brush pressed against the wall. Thanks to its patented aerodynamic spoiler shape, water flow forces the brush head tight against the pool surface with up to 15 pounds of pressure as it is pushed down. This unique design eliminates the back strain of manually leaning into the pole, allowing for deep cleaning with minimal physical effort.

• Bristle Material: Heavy-duty nylon bristles (safe for all pool surfaces).
• Width: 18 inches for wide-area coverage.
• Attachment: Standard push-button connection fits most telescopic pool poles.

Keep the brush moving in a smooth, downward motion to maximize the aerodynamic downforce effect. This brush is highly recommended for anyone who struggles with back strain or finds traditional pool brushing physically exhausting. It is not ideal for those looking to brush steps or tight corners, where the larger, flat profile can be awkward to maneuver.

Skimmer Rake – ProTuff Heavy Duty Pool Rake

Heavy debris like wet leaves, twigs, and acorns inevitably find their way into the pool during the opening process. Leaving this organic matter on the pool floor strains the filtration system, clogs the main drains, and quickly depletes the chlorine shock. A heavy-duty skimmer rake with a deep bag is essential for scooping large volumes of debris from the bottom before running the pool vacuum.

The ProTuff Heavy Duty Pool Rake is built to withstand the immense weight of wet, waterlogged leaves without bending or snapping. It features a super-strong, double-thick aluminum frame wrapped in a protective plastic rim to prevent scratches on vinyl liners or plaster. The deep, chemical-resistant nylon mesh bag holds a massive amount of debris, significantly reducing the number of trips needed to empty it.

• Frame Material: Reinforced aluminum inner frame with a protective outer resin coating.
• Bag Depth: 18-inch deep bag designed to trap both fine silt and large leaves.
• Warranty: Lifetime replacement warranty covers any breakage or damage.

This tool is perfect for pool owners surrounded by deciduous trees who must clear heavy leaf piles from their pool floor every spring. It is overkill for those with indoor pools or pristine screen enclosures who only need to skim occasional surface pollen.

Pool Clarifier – Robarb Super Blue Clarifier

Even after shocking and brushing, microscopic suspended particles like dead algae, pollen, and dust can pass right through a pool’s filter, leaving the water looking dull and cloudy. A pool clarifier works by binding these tiny, microscopic particles together into larger clumps. Once clumped, they become large enough for the sand, cartridge, or DE filter to trap, restoring sparkling clarity to the water.

Robarb Super Blue Clarifier is a highly concentrated formula that clears cloudy water overnight without affecting the pool’s chemical balance. A tiny dose of just one ounce treats 5,000 gallons, meaning a single bottle lasts through multiple seasons. It is designed to work efficiently in hot water and under heavy bather loads, making it highly effective during the initial spring startup phase.

• Chemical Type: Polyelectrolyte polymer liquid.
• Dosage: Ultra-concentrated; over-dosing can have the opposite effect, acting as a dispersant and making water cloudier.
• Filter Compatibility: Fully compatible with sand, cartridge, and diatomaceous earth (DE) filters.

This clarifier is ideal for pool owners who want to accelerate the clearing process and achieve that “polished” water look quickly. It is not suitable for clearing heavy mud or severe silt, which requires a flocculant and manual vacuuming to waste rather than standard filtration.

Metal Control – SeaKlear Metal Stain Remover

Well water, metallic plumbing, and mineral-rich source water can introduce high levels of iron, copper, and manganese into a pool. When shock is added during startup, the high chlorine levels oxidize these dissolved metals, causing them to fall out of solution and stain the pool walls or turn the water a translucent green or brown. A metal control agent sequesters these minerals, holding them in solution so they cannot stain the pool surface.

SeaKlear Metal Stain Remover is a highly effective, natural formula that removes existing stains and prevents new ones from forming during chemical shock. Unlike phosphate-based stain removers that can break down and feed algae blooms, this citric-acid-based formula is completely phosphate-free. It rapidly lifts metal stains from plaster, vinyl, and fiberglass surfaces, restoring a clean, uniform finish.

• Formula: Phosphate-free, eco-friendly citric acid base.
• Application: Add directly to the pool water near the return jets with the filtration system running.
• Post-Treatment: Keep the filter running continuously for 24 hours after application, and clean the filter elements afterward to remove captured metals.

This product is indispensable for pool owners who fill their pools with well water or live in areas with high natural mineral content. It is not necessary for those using municipal tap water that has already been treated and filtered to remove heavy metals.

How to Sequence Your Chemistry for Clear Water

Haphazardly dumping chemicals into a newly opened pool is a recipe for cloudy water and chemical waste. The opening sequence must follow a strict logical order to ensure that each chemical can do its job effectively. Before adding a single drop of shock or algaecide, the water must be balanced in terms of pH and total alkalinity. If the pH is too high or too low, the chlorine shock will be highly inefficient, requiring double the product to achieve the same sanitizing effect.

Once the pH (7.2 to 7.6) and alkalinity (80 to 120 ppm) are dialed in, the next step is to address the chlorine levels. Add the chlorine shock at dusk to maximize its sanitizing power without interference from sunlight. Run the filtration system continuously for 24 hours after shocking. Once the free chlorine level begins to stabilize, add the preventative algaecide and metal control to lock in the water clarity and prevent future staining.

A common mistake is adding water clarifiers too early in the process. Clarifiers should only be introduced after the large organic debris has been physically vacuumed out and the sanitizer has had at least 24 hours to kill off the active algae. Adding clarifier to a pool filled with live algae will simply clog the filter instantly, forcing premature backwashing and wasting the product.

Critical Filtration Checks Before the First Swim

Even the best chemicals are useless without a fully functioning filtration system to circulate and clean the water. Before flipping the breaker to start the pump, a thorough physical inspection of all mechanical components is required. All winterizing expansion plugs must be removed from the skimmers and return jets, and the directional eyeball fittings must be reinstalled. Check that the pump basket is free of cracks and that the lid O-ring is properly lubricated and sealed.

Next, prime the pump by filling the strainer housing with water from a garden hose before turning it on to prevent running the pump dry, which can ruin the shaft seal. Once the pump is running, monitor the pressure gauge on the filter tank closely. A starting pressure that is 8 to 10 PSI higher than the clean baseline indicates that the filter media (sand, cartridge, or DE) is dirty and requires immediate backwashing or cleaning.

Finally, inspect the entire pad for slow leaks, paying close attention to the multi-port valve, pump seals, and union connections. Air bubbles streaming steadily out of the return jets indicate a suction-side leak, usually caused by a loose pump lid or a dry, unlubricated O-ring. Taking the time to verify these mechanical details ensures the pool remains safe, clear, and efficient all summer long.

With the equipment checked and the chemistry balanced, the hard work of opening the pool is officially complete. Following this systematic approach ensures a safe, sparkling, and trouble-free swimming season from the very first splash. Now, it is time to grab the sunscreen, fire up the grill, and enjoy a perfectly prepared backyard oasis.