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Low Chlorine Levels in Your Pool? Easy® Fix with FROG Leap®

A person holds out a FROG Leap Torpedo Pac beside a pool.

If Chlorine Is Too Low

  1. Shock the pool if the chlorine level is below 0.5 ppm
  2. Inspect the chlorine Torpedo Pac®
  • The Pac may be empty and need replacement
  • Tablets can sometimes stick together and stop dropping into the water as they dissolve. Remove the Pac and shake it firmly so the tablets settle to the bottom
  • If your pool has a low flow rate, try priming the Pac by submerging it in the pool until it partially fills with water before reinstalling it

3. Adjust the Infuzer® setting if needed

Only increase the setting if you’re not already at 10 and chlorine remains low:

  • Test the chlorine level
  • If it is below 1.0 ppm, increase the dial by one setting only
  • Retest after 24 hours
  • If still low, increase by one more setting
  • Repeat until chlorine stays between 0.5–1.0 ppm

4. Check circulation and filtration

  • The Torpedo Pac only dispenses chlorine when the pump is running
  • Consider increasing pump run time if it is not already operating continuously
  • Clean or backwash the filter regularly to maintain proper water flow

5. Verify back pressure

  • The FROG Leap Infuzer performs best with 4–8 psi of back pressure
  • Low back pressure can prevent enough water from reaching the chlorine tablets
  • Installing a smaller return eyeball fitting can help increase back pressure

6. Watch for algae

  • Early algae growth can quickly consume chlorine
  • Shock the pool, add an algaecide such as FROG Leap All-Out®, and brush the pool walls to prevent algae from spreading

7. Check for nitrates

  • Fertilizers can introduce nitrates, which feed algae and rapidly use up chlorine
  • Test water near the return jet. If chlorine is present there but not elsewhere in the pool, nitrates may be the issue
  • FROG® 90-Day Goodbye Phos® are Pool Pods that help prevent phosphate buildup. Simply drop in the skimmer

8. Verify your test supplies

  • Test strips and liquid reagents typically last 12–18 months
  • Expired or contaminated test materials can give inaccurate readings
  • Avoid handling test strips with wet hands

9. Confirm the correct Infuzer model

  • An in-line Infuzer installed in an off-line application may not create enough back pressure for proper operation
  • If this has occurred, the unit should be replaced with the correct off-line model

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