External filter flow rate – on the scent of the secret

Aquarium fish keepers occasionally complain about a loss in output of external filters after a certain amount of time. Reason enough for the JBL Research Department to see what was actually causing a lower flow rate in some filters.

Measurements of JBL CristalProfi with accurate protocols Filtro exterior of a comparison of the previous series and the “greenline” series revealed amazing findings: For example, filters require a warm-up period, comparable to that of car engines, after which their output increases slightly.

After this second phase, there is a decrease in output due to debris collecting in the filter. Strangely enough, though, the original output was NOT restored after the filter was cleaned! It wasn’t until the hoses were cleaned with a flexible hose brush JBL Cleany that the original output was restored , with the output even increasing compared to the beginning of the test. You can find the detailed results and facts of this test at: JBL CristalProfi e901 greenline (under further information).

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