Troubleshooting Common Pool Problems: What to Do When Your Pool Isn’t Acting Right
- Pallett Pool & Spa
- 22 hours ago
- 5 min read

Owning a pool can be one of the greatest joys of homeownership, especially in places like Mississauga, where summers are warm and long. However, like any complex system, pools can sometimes develop problems that leave you scratching your head. Whether it’s cloudy water, strange equipment noises, or persistent leaks, troubleshooting pool issues quickly can save you time, money, and stress.
In this blog, we’ll go over some of the most common pool problems and provide simple troubleshooting tips to help you get your pool back to its sparkling best.
1. Cloudy Water: Why Your Pool Isn’t Clear
Cloudy water is one of the most common pool problems, and it can be caused by a variety of factors, such as poor filtration, improper chemical balance, or debris buildup. Here's how to troubleshoot cloudy water:
Check the Pool’s Filtration System: Ensure that your filter is running properly. If the filter is clogged or dirty, it won’t be able to remove contaminants, which can make the water appear cloudy. Clean or replace the filter as needed.
Test the Water Chemistry: A high level of contaminants, including chlorine or pH imbalance, can cause cloudiness. Use a pool water test kit to check the pH, alkalinity, and chlorine levels. If necessary, adjust the chemicals:
pH should be between 7.4 and 7.6
Chlorine should be between 1.0 and 3.0 ppm
Alkalinity should be between 80 and 120 ppm
Shock the Pool: If the cloudiness persists after balancing the chemicals, consider shocking your pool. Pool shock is a high dose of chlorine that helps eliminate organic matter like algae and bacteria.
2. Algae Growth: How to Get Rid of Those Green, Yellow, or Black Spots
Algae is a common issue, especially during the hot Mississauga summers. If your pool water is turning green, yellow, or black, it likely means you have an algae problem. Here’s how to deal with it:
Check the Water Chemistry: Imbalanced water can lead to algae growth. Check and adjust the chlorine levels and pH. Make sure your pool's filter is running efficiently and your circulation system is in good shape.
Brush and Vacuum: Use a pool brush to scrub the walls, floor, and corners of your pool, where algae can easily hide. Afterward, vacuum the pool to remove algae debris.
Use Algaecide: If regular cleaning and water balancing don’t work, you might need an algaecide. Follow the product’s instructions for application.
Shock the Pool: If algae persist, shock the pool to kill off the remaining algae. Make sure to run your pool filter 24/7 until the water clears.
3. Pool Pump Not Working: How to Troubleshoot Common Pump Issues
The pool pump is crucial for maintaining water circulation and filtration. If your pump isn’t working properly, it could lead to several issues, such as cloudy water or poor filtration. Here’s how to troubleshoot:
Check the Power Supply: First, check if the pump is plugged in and receiving power. If it’s connected, but still not turning on, it might be an electrical issue, in which case you’ll need to call a professional.
Inspect the Pump Basket: A clogged pump basket can restrict water flow and cause the pump to malfunction. Remove any debris that may be blocking the basket and clean it thoroughly.
Check for Air Leaks: If the pump is making noise but not circulating water properly, check for air leaks in the pump’s plumbing. Air in the system can cause poor suction and inefficient operation. Tighten any loose fittings, and make sure the pump lid is sealed properly.
Assess the Impeller: The pump’s impeller (the part that moves the water) could be clogged with debris, causing it to run poorly. Check for any visible blockages and remove them carefully.
4. Low Water Levels: Why Your Pool Is Losing Water
If you notice that the water level in your pool is consistently dropping, this could be due to evaporation, a leak, or a malfunctioning valve. Here's what you can do:
Check for Leaks: The first thing to do is check for visible cracks or holes in the pool’s surface, especially around the skimmer or pool equipment. If you find a crack, you may need a pool technician to fix it.
Perform a Bucket Test: To rule out evaporation, you can conduct a bucket test. Fill a bucket with water and place it on the pool’s step or ledge. Mark the water levels inside the bucket and in the pool. After 24 hours, compare the drop in water levels. If the pool water level has dropped more than the bucket’s, you likely have a leak.
Check the Pool Equipment: Sometimes, water loss is due to a malfunctioning valve or filter system. Check all your pool equipment and make sure the valves are closed when they should be.
5. Pool Heater Not Working: Troubleshooting Pool Heater Issues
If your pool heater isn’t working, it could be due to a number of causes, such as power issues, temperature setting problems, or a malfunctioning thermostat. Here’s how to troubleshoot:
Check the Thermostat Settings: Make sure the thermostat is set to the right temperature and that it hasn’t been accidentally lowered.
Inspect the Heater’s Power Supply: Ensure that the heater is plugged in and receiving power. If it’s not, check the circuit breaker and reset it if necessary.
Clean the Heater: Over time, dirt and debris can clog the heater’s filter, which can affect its efficiency. Clean the heater’s filter and check for any visible blockages.
Check for Error Codes: Many modern pool heaters have diagnostic systems that show error codes when there’s an issue. Refer to the manufacturer’s manual for troubleshooting based on the specific error code.
6. Leaks in Pool Equipment or Plumbing: How to Fix Them
Leaks can occur in the pool’s plumbing, filter system, or even in the pool’s surface. Here's how to troubleshoot:
Inspect Equipment for Visible Leaks: Examine the pool pump, filter, and heater for signs of leaks. Look for puddles of water around the equipment area or drips coming from pipes.
Check the Pool’s Surface for Cracks: Check for any cracks in the pool walls or floor. Small cracks can often be repaired with a simple pool patch kit, but larger ones may require professional attention.
Perform Pressure Testing on Plumbing: If you suspect a leak in the plumbing system, you can conduct a pressure test to locate the leak. This test should be performed by a professional.
7. Strong Chemical Smells: What They Mean and How to Fix Them
A strong chlorine smell is often a sign of poor water chemistry. It’s commonly caused by chloramines, which form when chlorine reacts with organic matter in the pool. Here’s what to do:
Shock the Pool: To break down chloramines, shock your pool with a high dose of chlorine. This will help clear up the strong smell and restore your water to a fresh, clean state.
Improve Circulation: Ensure your pool’s circulation system is running efficiently to help distribute the chemicals evenly.
Conclusion
Pool problems can be frustrating, but with the right knowledge and troubleshooting steps, most issues can be resolved quickly and easily. Regular maintenance, proper water chemistry, and routine inspections are key to preventing problems and ensuring your pool remains a clean, safe, and inviting place for you and your family to enjoy.
If you encounter any issues that you're unable to resolve on your own or if the problem persists, don’t hesitate to contact a professional pool service provider. At Pallett Pool and Spa, we’re here to help Mississauga homeowners with all their pool maintenance needs. Get in touch today to schedule a service or consultation!
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