If you can’t get your usual pool supplies, test the water before making changes, keep filtration and circulation running, and remove visible debris. Those steps help, but they do not disinfect the pool: if you cannot confirm that the water has an appropriate sanitizer level, keep swimmers out until it is corrected. Use a product labeled for your pool system and follow its directions and local requirements.
What to do first when pool supplies run short
- Keep swimmers out if you cannot verify safe disinfection, if circulation has stopped, or if the water is contaminated or its condition is unknown. Clear-looking water and a familiar smell are not substitutes for testing.
- Test chlorine and pH with a pool test kit and follow the kit instructions. A DPD kit is more accurate than strips, according to the CDC. Do not add chemicals based on a guess or an unverified reading.
- Keep filtration and recirculation operating according to the equipment maker’s instructions. If the pump or circulation system fails, leave the pool closed to swimmers until it is working again.
- Remove debris by skimming leaves and brushing accessible surfaces with pool-appropriate equipment. Empty baskets as appropriate for your system.
- Reduce contamination by asking swimmers to shower first, avoid swallowing pool water, and stay out if they have diarrhea.
- Get a compatible, labeled product from a reputable pool supplier or qualified service professional. The right choice depends on your existing sanitizer, pool volume, test results, stabilizer level, and product label.
Test the water and use the right targets
The CDC recommends that residential pool owners test chlorine and pH at least twice a day, and more often when the pool is heavily used. It recommends a pH of 7.0–7.8 and at least 1 ppm chlorine for pools. For pools using cyanuric acid stabilizer—including those using common dichlor or trichlor products—the CDC recommends at least 2 ppm chlorine. These are general CDC recommendations; product instructions and applicable local rules still matter. CDC: Home pool and hot tub water treatment and testing
As an Amazon Associate I earn from qualifying purchases.
Check both measurements before adjusting the water. The CDC says a DPD kit is the most accurate way to measure chlorine and pH, while test strips are less accurate. Follow the directions supplied with the test kit. A chlorine level above 10 ppm can bleach out some tests and produce a falsely low or zero reading, so do not respond to a suspicious result by blindly adding more chemicals.
Free tools Windows power users keep installed
One-click scans. No signup required.
pH affects how well chlorine works: higher pH reduces its ability to kill germs, particularly above 8.0, while very low pH can increase corrosion risk. A chlorine reading alone does not establish that every pathogen has been eliminated. For example, the CDC lists an approximate 15,300-minute (10.6-day) chlorine kill time for Cryptosporidium at 1 ppm free chlorine, pH 7.5, and 77°F (25°C), in pool water without cyanuric acid; it says disinfection times are longer when cyanuric acid is present. Those conditions are specific, and the figure is not a reason to treat a pool as safe based on one measurement. CDC: Home pool and hot tub water treatment and testing
#1 Best Overall
- This kit includes spa jet vacuum cleaner,a 13.5-inch pool brush,a semi-deep skimmer net and a 57.5-inch pole
- Spa jet vacuum with upgrade hose adapter for better connection to your garden hose
- The water pressure from your garden hose creates a venturi effect, which draws leaves and other debris into the collection bag(No electricity required)
- The net is designed to be half-depth, which allows for more debris to be captured in one sweep compared to a flat net
- The brush with curved edge design allows you to get the hard corners
What helps while you wait—and what does not
Keep the water moving and clean
Skimming debris, brushing pool surfaces, and maintaining filtration and recirculation support pool maintenance. They do not replace a sanitizer. CDC public-pool guidance discusses cleaning and operating filtration and recirculation, but its public-facility requirements are not automatically residential-pool rules. For a home pool, follow your equipment maker’s directions and applicable local guidance. CDC: Operating public pools
Limit what swimmers add to the water
Sweat, dirt, urine, and fecal matter consume chlorine and can contribute to illness risk. Ask swimmers to shower before entering, avoid swallowing water, and stay out when sick with diarrhea. These habits reduce contamination; they do not make an inadequately disinfected pool safe. CDC: Preventing diarrheal illnesses
Do not mistake a clear pool for a disinfected pool
Physical cleaning can make the water look better without correcting its sanitizer level. The CDC says residential owners are responsible for regularly checking chlorine concentration and pH to help protect swimmers from illness. If you cannot measure or restore suitable disinfection, keep the pool closed.
Rank #2
- Pool maintenance kit that is ideal for cleaning and maintaining a clean pool, spa, or ponds
- The net has a durable 6" deep ultra-fine nylon mesh netting and is excellent for skimming the finest debris
- The brush has durable nylon bristles for easily sweeping debris off walls, floors, and steps
- Includes 5-section adjustable length telescopic pole
- Your Trusted Pool Care Partner: U.S. Pool Supply offers professional-grade, affordable pool cleaning and maintenance solutions, empowering you to easily care for your own pool and eliminate the need for expensive scheduled pool service technicians.
Can you use household bleach instead of pool chlorine?
There is no universal bleach substitution or safe dose for every pool. Household bleach and pool products can differ in concentration, additives, labeling, and directions; the CDC’s residential guidance does not provide a general household-bleach dosing recipe for pools. Only consider a sodium-hypochlorite product if its label expressly permits the intended pool use, and only when you know the pool’s volume and current chemistry. If any of that is uncertain, ask a qualified pool professional or local authority rather than improvising.
Never mix chlorine products with acid or other chemicals. Keep products in their original containers, secured from children and pets, and use the protective equipment specified on the label. CDC: Pool chemical safety
Why other sanitizers are not simple replacements
Do not switch a pool to hydrogen peroxide, chlorine dioxide, or PHMB as a quick substitute for chlorine. The CDC’s 2024 Model Aquatic Health Code technical annex says hydrogen peroxide and chlorine dioxide are not EPA-registered for recreational-water disinfection in the discussion reviewed, and describes important operational limitations for PHMB. This technical guidance is not a homeowner conversion recipe. CDC: Annex to the Model Aquatic Health Code
Rank #3
- AFFORDABLE 150 STRIPS: This water chemical testing kit contains 150 test strips. Enough balanced for your swimming pool, hot tub, spa and other water testing. At least testing twice a week is recommended to keep your pool sparkling clean and safe.
- ACCURATE AND FAST TESTING: Just soak in water for 1 seconds; Then take it out,no need to shake excess water off and hold the test strip horizontally for 15 seconds; Compare with the color chart on the bottle to obtain clear and accurate water quality results.
- 7 IN 1 POOL TEST KIT: Test all necessary parameters for your swimming pool at 1 time, such as Bromine, Total Alkalinity, pH, Free Chlorine, Total Hardness, Cyanuric Acid, and Total Chlorine. Check water quality at any time you want.
- HIGH ACCURACY POOL TESTING STRIPS: High-quality fiber paper and no-bleeding pads selected after repeated trials by R&D personnel. No need to shake off excess water and follow the instructions easily, you will to get the accurate results.
- TIPS FOR ACCURATE RESULTS: Keep wet fingers away from the strips. Read under natural daylight for best results.Store in a cool dry place.The expiration is 3 years from manufacture. Once opened, use up in 90 days.
PHMB is incompatible with chlorine or bromine and requires a separate oxidizer. The annex warns that adding 3 ppm chlorine to a properly maintained PHMB pool can cause PHMB to precipitate as a sticky mass on pool surfaces and in the filter. If your pool already uses PHMB or another system you do not recognize, do not add chlorine or change products without checking the system’s label and getting qualified advice. CDC: Annex to the Model Aquatic Health Code
PC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchIf you have a saltwater pool
A saltwater chlorinator generates chlorine in the pool water by passing salt through an electrolytic cell; the pool is not chlorine-free. Continue testing free chlorine and maintaining the system. A separate chlorinating product may still be needed for shock treatment or remediation, and it must be compatible with the system and used according to its label. CDC: Annex to the Model Aquatic Health Code
When to call for help
Contact a qualified pool professional or local health department if you cannot restore sanitizer readings, the water is cloudy or contaminated, you are unsure which sanitizer system the pool uses, chemicals may have been mixed, or circulation equipment has failed. For public or shared pools, follow the operator and jurisdiction’s requirements; residential guidance is not a substitute for those rules. CDC: Operating public pools CDC: Pool chemical safety
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
