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Will not hold chlorine, or salt system reads low.

A pool service technician should inspect cells and feeders, and a licensed professional should do any rewiring or re-piping.

Customers put it like this

  • I can't keep chlorine in the pool
  • salt system says low salt
  • chlorinator light is on
  • feeder tank isn't going down
Prepare this job in ForeBotFind another guide

Stop first if

  • A strong chlorine smell is near a feeder or in an enclosed equipment room.Leave and do not go in to look. Keep others out. Call emergency services.
  • The pump stopped while chemical feed may have kept running.Keep people out of the water. Do not restart until a qualified operator has checked the feed.
  • A salt cell was powered with no water flowing.Shut it off only if that can be done without risk. Keep people and ignition sources away. Call a licensed pool professional.
01

Ask on the call

6

Homeowner? These are the questions a good technician will ask you. Having the answers ready makes the first visit count.

  1. Is the pool on salt, tablets, liquid feed or something else?
  2. What does your own test kit show, not just the display?
  3. Was salt added recently, and what kind was it?
  4. Has the feeder tank level dropped over the last few days?
  5. Was a UV or ozone unit added recently?
  6. Is this a biguanide or other non-chlorine pool?
02

Bring

5
  • Independent salt and chlorine test kit
  • Stabilizer test supplies
  • Plastic or wooden scraper
  • Gloves and eye protection
  • Flashlight
03

Check on site

6
  1. Identify the sanitizer system before any chlorine product goes in.
  2. Test free chlorine and salt with an independent kit before trusting a display.
  3. With chlorinator power and pump off, pull the cell and look for scale or debris.
  4. Trace equipment order and see whether the chlorinator loses power when the pump stops.
  5. Track feeder tank level over days, then have a trained tech inspect the feed checks with feed off.
  6. Where UV or ozone is fitted, compare chlorine use before and after, and test for a pool residual.
04

Keep on the record

4
  • Independent salt and chlorine readings beside the display values
  • Photo of the cell plates
  • Feeder tank level with dates
  • Ingredient list from the salt bags used

General guidance for a qualified person, not a finding about any home. The person on site decides.