Pet owners across the UK are being alerted to a common household oversight that could seriously jeopardise their dog's health. Experts warn that failing to regularly clean your dog's water bowl can lead to the development of a hazardous bacterial slime, putting your pet at risk of salmonella and other infections.
The Hidden Danger in Your Dog's Bowl
David, a pet food nutritionist with a decade of experience who runs the TikTok channel @allaboutdogfood, highlighted the issue. He pointed out that a "simple task" often forgotten by owners is washing the water bowl. "Although your dog's water bowl may look clean, if you leave it down for too long, a thin film called biofilm can build up," he explained.
This biofilm is not just harmless grime. It creates a thriving environment for dangerous pathogens. The pet advice site Pets4Homes corroborates this warning, stating that uncleaned bowls allow biofilm to form, a slimy layer where harmful bacteria like Salmonella and Escherichia coli (E. coli) multiply. Fungi and parasites such as Giardia can also contaminate water sources.
David described the tell-tale sign: "You might have noticed it if you ever run your finger on the inside of your dog’s bowl... It may even feel slightly 'slimy' around the edges." This film contains bacteria that "can really harm their health," potentially causing severe gastrointestinal upset, including vomiting and diarrhoea.
Beyond the Home: The Risk of Communal Bowls
The warning extends beyond your kitchen. Owners must also be cautious of communal water bowls found outside pubs or in parks. Pets4Homes experts note these shared bowls significantly increase health risks as multiple dogs use them.
They warn that viruses, including those responsible for kennel cough and canine papilloma virus, can transmit through shared saliva. Studies in 2025 within UK veterinary circles have emphasised avoiding communal bowls to protect dogs from respiratory infections and other contagious diseases.
Symptoms of Kennel Cough to Monitor
Kennel cough is a highly infectious airway condition. According to the PDSA charity, symptoms typically develop within three to 14 days and can last up to three weeks. Dog owners should watch for:
- A persistent, hacking cough
- A reduced appetite
- Low energy or lethargy
- A high temperature (fever)
While most dogs remain otherwise well, puppies, older dogs, and those with existing health issues can develop more serious complications.
The Simple Daily Solution
The remedy for this hidden hazard is straightforward. David concludes with clear advice: "The best thing to do is clean once per day with some hot soapy water." This simple, daily routine can effectively remove the biofilm, eliminate harmful bacteria, and help ensure your dog's drinking water is safe.
By making this a regular habit, owners can proactively safeguard their pet's wellbeing, potentially preventing distressing symptoms and an unexpected trip to the veterinary surgery.
