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Jolly Gel Pool Flocculent - Private Pools

Jolly Gel helps to remove phosphates and minute debris particles from swimming pool water and transforms the water clarity in just a few hours. Jolly Gel is Europe’s number one swimming pool flocculent for private swimming pools. It has been on the market for 32 years and we now own-label the product for stockists in 37 countries worldwide.

Jolly Gel is Europe’s number one swimming pool flocculent for private swimming pools. It has been on the market for 32 years and is now own-labelled for customers in 37 countries worldwide.

Jolly Gel (JG4), which works with sand, Zeoclere and glass filter media, are small translucent 5cm x 5cm x 2cm cubes that are placed in the pump basket (not the skimmer).  The cubes dissolve slowly as water passes over them on the journey to the filter, it places a porous, clear glutinous membrane screen over the filter media, penetrating the bed to an average depth of some 15cm (6”).  The glutinous structure collects the finest particles of dust along with algae spores.

During the backwashing cycle, the bed lifts, and the Jolly Gel formulation washes the collected debris and spores to waste.

When using Jolly Gel for the first time, check that the PH is 7.2-7.6, it is important that the user observes the pressure reading within the first six hours.  Jolly Gel has a far greater collection capability than all known flocculents, so the user may be unaware that the pressure in the filter could build unnoticed. Once the water has been cleaned by Jolly Gel, normal maintenance can be resumed.

Jolly Gel has not been formulated for cartridge or DE filters and should not be used in these filters.

Jolly Gel has attained REACH Status which certifies that all ingredients meet Regulation (EC) No 1907/2006 of the European Parliament and of the Council concerning the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH), and its amendments.


  • Because of the product’s unique formulation, minuscule particles of dust can be removed from the pool water

  • Continues to work for up to 3 weeks

  • Removes algae spores

  • Reduces chlorine consumption

  • Prepares water to camera ready standards

  • Does not create clouding or residual dust

  • Places a clear membrane screen across the media to a depth of some 15cm (6”)

  • Encapsulates the fine particles and holds them to the bed by means of a mild, glutinous formulation that is flushed away during a backwash cycle

  • Quick dissolve cubes

  • Non-hazardous – safe transportation  

Jolly Gel Flatpack

Jolly Gel flocculent for private pools is also available in a flatpack format featuring the well-recognized brightly coloured design of the standard Jolly Gel pack. The product formulation and the size of the gel cubes are identical to the original pack. Jolly Gel flatpack comes with usage instructions in seven languages. 

The new slimline pack is faster and easier to slip into an envelope for posting, fits easily through a letterbox and compared with the standard pack, it is 46% on average cheaper to post an individual flatpack. 

Jolly Gel flatpack is also available as an own-label product – this can be produced in one of two ways: either add a company name to the MSI pack design, or MSI will create bespoke artwork for your own label pack, free of charge.  Own label packs take up to five weeks to produce and deliver.

Packaging options

  • Up to 12,500 gallons

  • Retail box of 4 cubes – 12cm x 6 x 6

  • Transport carton of 24 retail boxes

  • 30cm x 30cm x 13cm

  • Weight: 7.8kg

  • White Euro Jolly Gel Carton – which holds 25 retail packs and each retail pack contains 4 cubes. The carton is very strong and features a tick box for easy country identification. For English speaking territories, MSI includes a gift of a ‘Jolly Clever’ pin badge.

  • Own label packaging

Jolly Gel Carton

Our Jolly Gel transport carton holds 25 retail packs and each retail pack contains four cubes.  The carton is very strong and features a tick box for easy country identification.  For English speaking territories, we include a promotional gift of a Jolly Clever pin badge in this retail pack.

Jolly Gel Turbidity Results

The turbidity testing took place over a five day period and the results were impressive as you will see from the graph. Whilst test pool number four started out looking visually good with a turbidity reading of 0.4NTU (being 0.1 NTU below the PWTAG Standard), even so, Jolly Gel improved the water clarity by taking the level down to: 0.27NTU which is far better than the 0.5NTU standard set by PWTAG. Perhaps even more impressive were the results for pool number five, as this pool was initially in a very poor condition with a turbidity reading of: 1.28 NTU. After just four days the turbidity level reduced to 0.28NTU and although there was a slight rise at the end of five days it was still within the 0.5NTU Standard set by the PWTAG. In fact, if you take the standard of 0.5 NTU and rate it at 100% then the best results from the two pools were close to 50% better than the PWTAG standard or ordinary flocs.

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