Is your pool pump running dry, leading to potential damage and costly repairs? A dry-running pump can cause overheating, seal failure, and even complete pump breakdown.
In this blog post, we’ll cover 9 practical tips to prevent your pool pump from running dry. From maintaining proper water levels to installing protective devices, these steps will help keep your pump running smoothly and extend its lifespan.
Maintain Proper Water Level
The water level should be at the midpoint of the skimmer opening or slightly above. If the water level drops too low, air can enter the system, causing the pump to lose prime and run dry. Check the water level regularly, especially during hot weather or heavy pool use, and add water as needed to maintain the proper level.
Clean the Skimmer and Pump Basket
Debris can accumulate in the skimmer and pump basket, restricting water flow and causing the pump to run dry. Clean the skimmer basket at least once a week, or more often if necessary. Turn off the pump, remove the basket, and empty it of leaves and other debris. Also clean the pump basket located inside the pump housing. Ensure both baskets are properly seated and not damaged before replacing them.
Inspect the Skimmer for Cracks
A cracked or damaged skimmer can allow air to enter the system, causing the pump to lose prime and run dry. Regularly inspect the skimmer for cracks, especially near the water line where temperature changes and chemical exposure can cause damage. If you find any cracks, repair or replace the skimmer immediately to prevent air leaks and ensure proper pump operation.
Ensure a Proper Seal on the Pump Lid
The pump lid must have a proper seal to prevent air from entering the system. Check the lid for cracks or damage and replace it if necessary. Ensure the lid O-ring is in good condition and properly lubricated with a silicone-based lubricant. When replacing the lid, make sure it is seated correctly and tightened securely to maintain a proper seal.
Prime the Pump Correctly
Priming the pump involves filling it with water before starting, which helps prevent the pump from running dry. To prime the pump, turn off the power and close the valves on the suction and discharge lines. Remove the pump lid and fill the pump basket with water. Replace the lid, making sure it is sealed tightly. Open the valves and turn on the power. The pump should now be primed and ready to operate without running dry.
Check for Air Leaks
Air leaks in the suction side of the plumbing can cause the pump to lose prime and run dry. Inspect all pipes, valves, and fittings on the suction side for leaks, especially at joints and connections. Look for bubbles in the pump basket or skimmer, which can indicate an air leak. Use a sealant or replace damaged components to eliminate any leaks and ensure the system is airtight.
Install a Float Switch
A float switch is a safety device that can prevent your pool pump from running dry. This switch is typically installed in the pump basket or skimmer and monitors the water level. If the water level drops too low, the float switch will automatically turn off the pump to prevent it from running dry. This simple and inexpensive device can provide added protection and peace of mind for pool owners.
Use a Pressure Sensor or Flow Sensor
Pressure sensors and flow sensors are advanced pump protection devices that can help prevent your pool pump from running dry. A pressure sensor monitors the pressure in the system and shuts off the pump if the pressure drops below a certain level, indicating a potential problem. A flow sensor measures the water flow and turns off the pump if the flow rate falls below a preset threshold. These sensors provide more precise monitoring and protection compared to float switches.
Use a Countdown Timer with a Flow Switch
Combining a countdown timer with a flow switch can provide an extra layer of protection against a dry-running pump. The countdown timer is set to a specific duration and starts when the pump is turned on. If the flow switch does not detect adequate water flow within the set time, it will automatically shut off the pump. This setup helps ensure that the pump does not continue to run if there is a problem with water flow, preventing damage from running dry.
