Aqua Guard MasterPro Series Manuale d'uso - Pagina 6

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Cartridge Cleaning

NOTICE: The pressure gauge is the primary indicator

of filter performance. Maintain the pressure gauge in

good working order. If the gauge is damaged, replace it

immediately.

When to clean the filter

The filter cartridge should normally be removed and cleaned

when the pressure gauge reads 8 - 10 PSI above the start-up

pressure noted below:

Installation date:

Start-up pressure:

Cleaning pressure:

In some pools/spas, accessories such as fountains, waterfalls,

and pool cleaners may be noticeably affected by the normal

decrease in flow as the filter becomes dirty. If so, these

systems may require more frequent cleaning (that is, at a

pressure increase of less than 10 PSI) to operate properly.

NOTICE: When using PHMB (polyhexamethylene

biguanide) based sanitizers, such as Baquacil®, special

care must be taken when cleaning the cartridge.

Cartridges in systems using these sanitizers must be

cleaned more frequently and thoroughly than chlorine

systems. PHMB based sanitizers also require the use

of special PHMB cleaners. Carefully follow the PHMB

sanitizer/cleaner manufacturer's instructions when

cleaning the filter. Use of any other type of cleansers with

PHMB sanitizers will permanently clog the filter and will

void the filter warranty

NOTICE: Failure to remove all oils and cleaning solution

before soaking cartridge in acid will permanently damage

the filter cartridge.

aquaguardpoolsystems.com

If the filter has a coating of algae, calcium carbonate (residue

from calcium hypochlorite), iron or other minerals, soak the

cartridge in a solution of one part muriatic acid to twenty

parts water (6 fl oz per gallon of water) until all bubbling

stops.

WARNING: Wear rubber gloves, protective

clothing and safety goggles when using acid.

Do not add water to acid, as splashing of full

strength acid could result.

Thoroughly rinse the cartridge to remove all acid

solution.

WARNING: When this procedure no longer

adequately cleans the cartridge, discard the cartridge and

replace it with a new one.

Carefully follow the steps in the "Filter Re-Assembly" section

of this manual.