Ocedis

Ocedis filter cleaning products for pools and spas

A filter does the quiet work in a pool or spa: it keeps the water clear between chemical doses and takes the strain off the pump. Over a season, though, the filter medium collects far more than visible dirt. Body oils, sun cream, cosmetics, airborne pollen and hardness salts build up inside cartridge pleats and bind the top layer of a sand bed together. Backwashing shifts loose debris, but it does not remove greasy or mineral deposits, which is why pressure slowly creeps up and flow slowly drops. Here you will find the Ocedis filter cleaner, a liquid treatment intended for both spa cartridges and sand filters.

What a chemical filter clean actually does

Rinsing a cartridge with a hose removes surface dirt and little else. The fine pores of the media stay blocked by a film that water alone will not lift. A dedicated cleaner is used as a soak or a circulated treatment so that the chemistry has time to work through the full depth of the pleat or the sand bed, loosening the bound material so it can be rinsed or backwashed away.

Signs that a clean is overdue are easy to spot:

• Rising pressure — the filter gauge sits noticeably higher than the reading taken just after the last backwash or cartridge rinse.
• Weak return flow — the jets or return inlets push less water than usual, even with a clean pump basket and skimmer.
• Cloudy water that will not clear — the chemistry is balanced and the pump is running, but the haze persists.
• Short filter cycles — the unit needs backwashing or rinsing far more often than it did earlier in the season.
• Greasy feel or scale on the media — pleats feel slippery, or a crust forms on the sand surface.

Cartridge filters and sand filters compared

Spa and pool cartridges are the most demanding case. A hot tub holds a small volume of water relative to the number of bathers, and heat makes oils and lotions far more likely to stick to the media. Cartridges are usually removed, rinsed, then soaked so the treatment can penetrate each pleat before a final rinse and refit. A spare cartridge is always worth having so the spa can run while the other one dries.

Sand and glass media filters clog differently. The finest particles and the oily residues concentrate in the upper few centimetres, where they can form channels that let water bypass the bed altogether. A chemical clean is introduced so it can act on that layer, followed by a thorough backwash and rinse. Where the sand has hardened into clumps that a clean no longer resolves, the media itself has reached the end of its life and should be replaced.

Using the product and ordering the right one

Always work from the dosage and contact time printed on the bottle, as treatment volumes differ between a small spa cartridge and a full-size sand vessel. Switch the pump off before removing a cartridge or opening a multiport valve, and depressurise the housing first. Rinse treated media well before returning it to service, and check the pressure gauge once the system is running again so you have a fresh baseline figure to compare against later in the season.

To identify the correct item, work from the reference number rather than the description alone. The product listed here carries the Ocedis reference 772000010 and comes in a one-litre bottle. If you are matching against a supplier invoice or an old empty container, compare that code and the volume. Store the bottle upright, closed, out of direct sunlight and away from other pool chemicals, and never mix it with chlorine or acid products.

Ocedis at PoolParthub.com

Here we list the Ocedis filter cleaner in the one-litre size for spa cartridges and sand filters, reference 772000010. It is stocked because filter maintenance is the single most effective thing an owner can do to keep water clear and reduce the load on the pump, and because a cleaner that suits both cartridge and sand systems covers almost every domestic installation.

The range sits alongside the cartridges, sand media, filter housings, gaskets and multiport valve parts also carried on the site, so a full filter service can be put together in one order. If you are unsure whether your media needs cleaning or replacing, the pressure reading and the condition of the media itself are the best guide.