For many of us, nothing beats a summer afternoon with friends, family, and the family dog splashing around in the pool. Dogs love it, kids love it—and let’s be honest, it makes for the best backyard fun. But there’s one thing pool owners are often surprised to learn: letting dogs swim dramatically increases the chlorine your pool needs.
Here’s why your furry friend is such a game-changer for water chemistry.
1. Fur = a magnet for dirt and bacteria
Unlike smooth human skin, a dog’s fur traps all sorts of things—dust, pollen, dander, bacteria, even lawn chemicals. The moment they jump in, all that washes into the water, leaving chlorine to do the heavy lifting.
2. Natural oils coat the water
Dogs don’t sweat like we do, but their skin produces oils that coat their fur. These oils are great for their coat’s health, but once released into pool water, they create an extra organic load for chlorine to neutralize.
3. Saliva and “accidents” happen
Dogs drink, drool, and sometimes even relieve themselves in the pool. Saliva and urine both contain nitrogen compounds, which react with chlorine to form chloramines—the stuff that causes strong “chlorine smell” and eye irritation.
4. Muddy paws bring the outdoors in
Unlike humans, dogs don’t rinse off before swimming. Grass, soil, and even a bit of backyard mud often end up in the pool, adding another layer of work for your sanitizer.
5. One dog = several people
Here’s the kicker: a single dog in your pool can create as much chlorine demand as three to ten people. That means just one playful pup can throw off your water balance far more than your whole family combined.
Keeping the pool clean and safe
If you love letting your dog join in the fun, you don’t have to say no—you just have to stay ahead of the extra maintenance:
- Test your chlorine levels more often
- Shock the pool after heavy dog swimming sessions
- Brush and vacuum regularly to remove fur and dirt
- Rinse your dog before swimming (a quick hose-off helps a lot)
Dogs and pools can mix—but it comes at a cost. With fur, oils, dirt, and the occasional “oops,” your four-legged friend pushes chlorine to work overtime. HydraPure secondary sanitisation sytem is a great alternative to higher chlorine levels. UV and ozone that HydraPure uses to sanitise pools, are safe and hassle-free in maintenance, too. Keep on top of your pool care, and you’ll enjoy safe, sparkling water while making summer memories with the whole family—including the furry ones.
