Darlly filters are manufactured to the highest standard and use a tough resilient filtration media designed and specified to provide a long service life.

Material efficiently filtered from the hot tub water will build up within the pleats of the filter fabric, restricting flow and filtration capacity.

Often, the hot tub display will indicate a flow error if there is a flow restriction within the system. In this case, the easiest and first item to check is the filtration. Visually inspect the filters for a build-up of matter within the pleats. If there is build-up make sure to clean the filter thoroughly.

Inspect the fabric of the filter media for complete integrity, checking carefully for any damage, rips, tears or holes that will allow unfiltered water to flow freely through the filter fabric. A damaged filter should be replaced as it is no longer providing the required level of filtration. If there is a hole or tear in the fabric the water can bypass the filter and render it useless.

Over time, repeated or unsympathetic cleaning can cause the filter to lose its efficiency and require replacement. This can also be seen by pleats sticking together and being out of place. 

The filter end caps can also fade over time giving an indication that the filters have been in use for quite some time and although the fading does not affect the efficiency of the filter, the possible build up of difficult-to-remove debris deep in the pleats almost certainly will and replacement should be considered.

Remember, a quality Darlly filter will help to maintain your hot tub water quality, considerably enhancing your hot tub experience and enjoyment.

Use our website to read about different types of filter and to locate your nearest Darlly supplier.

At Darlly we would recommend to change your filter every 12 months, this will help prolong the life of your hot tub and improve spa efficiency.

Happy Hot Tubbing!

The Darlly Team 

The filter should first be inspected to check that the filter material is not damaged, ripped or torn. If the filter material is damaged or compromised in any way, the filter should be replaced. In this condition, it will not filter the water efficiently or effectively.

Particles and debris trapped by the filter will remain in the filter until removed by thorough cleaning. Dirty filters will easily lead to restricted flow and flow related errors.

An effective method to remove dirt and debris from pleated filters is to use the Darlly Cyclone Filter Cleaner (SC785) filter cartridge cleaner which easily attaches to any standard garden hose.

Step 1

Start by turning all the jets off on the hot tub.

Step 2

Carefully remove the filter from the filter housing without letting any of the debris back into the main chamber of the spa. 

Step 3

Move the filter near a drain/away from the tub. Attach the Darlly Cyclone Filter Cleaner to the hose and push the bristles into the pleats of the filter. Move the bristles up and down whilst pressing the trigger to wash out all the unwanted deposits. This will remove a large proportion of the deposits filtered out of the water.

Step 4

The filters should then be soaked overnight in a cleaning solution such as our Darlly Filter Cartridge Cleaner (SC796). Follow the simple instructions on the packaging to mix the solution. This can be mixed in a bucket and the filter(s) should then be submerged in the solution and to left to soak overnight for deep cleaning.

Step 5

After removing from the solution, a thorough wash with a garden hose will complete the procedure before the filters are left to dry before use.

A thoroughly cleaned filter will provide more efficient filtration than a poorly cleaned one. 

It can be advantageous to have two sets of filters to allow continued filtration and to help maintain water quality during the cleaning process.