- Dr. Casey Smallwood
- Mar 24
- 4 min read
If you let your pup go swimming with you in a pool, you might be wondering, is chlorine water safe for my dog? Here, we’ll discuss the differing levels of chlorine ingestion by dogs and what to do about them. The more you know about your pup's safety, the better the dog days of summer will be for both of you!
As always, if your dog requires immediate vet attention, VEG ER for Pets animal hospitals are open 24/7 to help!
Can dogs swim in chlorinated pools?
Yes - most dogs can safely swim in a properly maintained chlorinated pool.
When pool chemicals are kept within recommended levels, the chlorine is heavily diluted and typically causes minimal issues beyond possible mild stomach upset if a small amount is swallowed.
That said, problems can happen when:
A dog drinks large amounts of pool water
Pool chemical levels are too high
A dog ingests concentrated chlorine tablets, granules, or liquid chlorine
A dog is exposed during or immediately after the pool is “shocked”
Chlorine fumes are inhaled in enclosed areas
The key difference is concentration and quantity. Diluted pool water is very different from concentrated pool chemicals.
Can dogs drink pool water? What happens if they do?
A few mouthfuls of pool water are typically not dangerous. But repeatedly gulping water while swimming can lead to:
Electrolyte imbalance
In more serious cases, dogs may appear lethargic, weak, or unsteady.
Seek emergency care if:
Vomiting is persistent
Your dog seems disoriented or wobbly
There is abdominal pain
A very large amount of water was consumed
What if my dog eats a pool chlorine tablet?
Because chlorine tablet manufacturers make chlorine tablets taste bad, a dog eating a full chlorine tablet is pretty uncommon. But if your dog does end up consuming a tablet, you need to call VEG immediately. Chlorine tablets and liquid chlorine are highly concentrated and corrosive, and can cause chemical burns to a dog’s mouth, throat, esophagus, and stomach.
If your dog eats a little bit of a chlorine tablet
The process is the same. You need to call us for vet advice, our emergency hospitals for dogs and all pets are open 24 hours a day, every day.
Symptoms of chlorine ingestion in dogs
Chlorine is a harsh chemical; depending on how much is ingested, symptoms will vary. Always see an emergency vet if your dog swallowed chlorine.
Symptoms to watch for if chlorine is ingested
Nausea/Vomiting - if a big enough amount is ingested, GI problems are sure to follow
Redness/Soreness in mouth - chlorine tablets can cause bad oral ulcerations
Throat damage - ulcers can form, causing damage to the esophagus
Stomach damage - if an ulcer is bad enough, it can perforate the stomach lining
What to do if your dog eats or drinks chlorine
Do not induce vomiting.
Do not give milk or home remedies unless directed by a veterinarian.
Rinse your pup’s mouth gently if safe.
Go to an emergency veterinarian immediately.
Bring the product container if possible.
Corrosive injuries can worsen over time, so early treatment can make a significant difference.
Why high chlorine levels and pool shock can be dangerous for dogs
If a pool has just been shocked or improperly balanced, chlorine levels may be temporarily elevated. Swimming too soon can cause:
Eye irritation and squinting
Skin redness or chemical irritation
Respiratory irritation
Dogs should always be kept out of the water during and immediately after shocking the pool.
If exposure happens:
Rinse your dog thoroughly with fresh water.
Flush irritated eyes gently.
Monitor closely for worsening symptoms.
Persistent pain, breathing changes, or repeated vomiting warrant an immediate visit to VEG.
Are salt water pools safe for dogs?
Dog owners concerned about chlorine ingestion may want to enjoy a salt water pool with their dog. But is a salt water pool safe? There are some things to be aware of before taking the plunge with your pup.
Salt water pool safety for your dog
Is there chlorine in a salt water pool?
When salt is added to pool water, it runs through a chlorine generator for sanitization. So while chlorine isn't added directly into the pool water, the end result is not exactly a chlorine-free pool.
A salt water pool may be more gentle on your dog's skin, but the pool's chemistry levels should be checked, just as you would with a chlorinated pool.
Additionally, salt water pools contain, well, a fair amount of salt! A little sip may not be harmful, but take caution if your dog is prone to lapping up water or taking big gulps.
Salt water can lead to a number of problems if ingested by a dog, such as:
Whether you have a chlorinated pool or a salt water pool, your dog needs to be monitored at all times to avoid accidental ingestion, drowning, and other safety concerns.
How our ER veterinarian will treat chlorine ingestion
You can expect your dog will be given IV dilution to correct the chloride imbalance. We most likely won’t induce vomiting because chlorine is corrosive to the esophagus, so once it’s down, we don’t want to bring it back up.
If damage is more severe, like if there’s a perforation in the stomach, your dog may be given sucralfate, which is like the dog version of Tums or Pepto Bismol.
Since the mouth is chock full of soft tissue, it’s easy to see why chlorine could easily cause ulcerations. For mouth ulcers, your dog will be given an injectable to control the pain.
Contact your local VEG vet hospital for all pet emergencies—always open
Contact VEG 24-hour animal hospital if your pet needs emergency care
We have animal hospital locations all over the country with emergency vets who are available 24/7 to help you and your pet. When you come to VEG, our emergency-trained team will triage your pet within seconds and you stay with your dog the whole time.
