Fluval 105 'boosting'

[nurglespuss]

Hi, as you know my fluval 105 is now set up, its running great fingers crossed. However, very infrequently, I've notice it kind of 'boosts' its flow for a single burst (or thats how it appears). It hums a tad more loudly and a greater out put gushes out, just for a second.

Is this something I should maybe worry about? Im going on holiday in 3 weeks, and want to be able to trust this filter....

 

[Rooster]

Probably trapped air... try rocking the filter (whilst running!) side to side...