How To Clean My Pool After A Storm Or Flood?
🌧️ How to Clean Your Swimming Pool After a Storm or Flood
âś… 1. Turn Off All Equipment
Turn off the pump, filter, chlorinator, and heater at the breaker if needed.
Avoid running equipment with heavy debris or dirty water—it can cause damage.
âś… 2. Remove Debris Manually
Use a leaf skimmer or net to remove:
Branches
Leaves
Toys or trash
Avoid using the pool vacuum until large debris is cleared to prevent clogging.
âś… 3. Clean Skimmer and Pump Baskets
Remove all debris to ensure good circulation once you restart the system.
âś… 4. Check and Clean the Filter
Cartridge filter: Remove and hose it off.
Sand or DE filter: Backwash thoroughly.
Repeat cleaning daily if the water is heavily contaminated.
âś… 5. Test and Balance the Water
Storms can wash contaminants into the pool and dilute chemicals:
pH: 7.2–7.6
Alkalinity: 80–120 ppm
Chlorine: 1–3 ppm
Adjust as needed before shocking.
âś… 6. Shock the Pool (Superchlorinate)
Use a chlorine shock or non-chlorine oxidiser.
Run the pump for 24–48 hours continuously.
Shock again in 24 hours if water is still cloudy or smells bad.
âś… 7. Brush and Vacuum
Brush walls and floor to remove dirt or algae.
Vacuum manually (or use a robotic cleaner if safe).
For flood-contaminated pools, vacuum to waste if possible to avoid recirculating muddy water.
âś… 8. Run the Pump Until Water Clears
Keep the system running non-stop until the pool is clear.
Clean or backwash the filter regularly during this process.
âś… 9. Add Clarifier or Flocculant (Optional)
Use a pool clarifier if the water is just cloudy.
Use a flocculant if the water is very dirty and full of fine particles (requires manual vacuuming after settling).
âś… 10. Final Water Balancing
Once clear, recheck water chemistry.
Add necessary chemicals to restore proper balance.
Reinstall automatic chlorinators or salt cells if removed.
⚠️ If Flood Water Entered the Pool:
Assume contamination from sewage, pesticides, or bacteria.
Drain partially or fully (if permitted) and refill.
Use high-dose chlorine and test for phosphates or bacteria before swimming.
Better yet, if you are unsure of the extent of the damage give us a call and we can help assess your pool and provide a quote for recovery.