Does your hot tub have a blocked hot tub filter or Flow Error Message?

A possible cause of a Flow Error Message is a filter desperately in need of a clean.

When did you last check the filters for dirt and contamination or clean them properly? Really properly, not just a quick swill with a hose pipe as this won’t help address the real problem here. 

Filter checks should not only be based on time periods, such as weekly or monthly. Consider how often the hot tub has been used, by how many and the possible dirt and contamination that may have entered the water. The filters may need cleaning more often if the usage is higher than usual.

Do your Hot Tub Filters block quickly? Check out our My Hot Tub Filter Blocks Quickly, Is It Faulty? Filter Care topic.

What does a filter remove from the water? 

Knowing common contaminants and how they can enter the water can help us to understand the reasoning behind the need for high quality filtration and water care.

Quality Darlly filters trap most contamination that enters the hot tub water, ranging from fake tan to leaves and dead insects. Other contaminants can include make-up, hair, dirt carried in on the bottom of bather’s feet etc.

Why does a hot tub need filters?

The way filters work is quite simple. Dirty contaminated water is pumped through the filter which collects the dirt, body oils, and debris from the flow. The clean filtered water then returns to the hot tub. Read our Why does a hot tub need filters Filter Care topic.

Can I use a hot tub without filters installed?

The short answer is definitely no. Without a filter, the water would soon become contaminated with dirt from the environment (dust, leaves, insects etc), and from the hot tub users (Sunscreen, tanning products, make-up, deodorant, body oils, dirt, hair etc).

Without efficient filtration, these contaminants would soon build up to a critical level in the water. If left unaddressed, the bathing water can become cloudy, and algae growth is a possibility. 

This can upset the balance of the water. Chemical usage increases in trying to deal with the problem. This in turn hastens water saturation where the chemicals cease to be effective. As a result, the water can then become damaging to the hot tub mechanicals and possibly affect the surface feel of the hot tub moulding.

Read our How Do I Check And Maintain The Water Quality In My Hot Tub? Filter Care Topic.

Inline Sanitisation

What is Inline Sanitisation and how can it help with maintaining water quality?

Darlly SaniStream and SpaPods are designed to dispense your choice of bromine or chlorine directly into the water from within the filters. Read our ‘Inline Sanitisation, Darlly Sanistream And SpaPod. What Does It All Mean?’ Filter Care topic for more information. 

Further interesting topics and reading

Want to know more? We have additional interesting information, and many other relevant topics to help you with a blocked hot tub filter or Flow Error Message on our Filter Care Topics page. There are plenty of short topics about enjoying getting the most from your hot tub. Filter care, water care, finding your filters, and many more easy-read topics which you may find interesting, allon our Darlly Filter Care Topics page. Take a quick look, there may just be something that can help improve your hot tub experience!

For help with identifying your hot tub filters, check out the Darlly Filter Finder.

We regularly add new topics to our Filter Care pages so remember to drop by and read more articles about how to caring for your hot tub and filters.

If you have any questions or suggestions for topics that you would like us to cover on our Filter Care Topics page, please do not hesitate to get in touch.

We will do what we can to help.

Happy Hot Tubbing!

The Darlly Team