I am runnig 4 Hydor Koralia Evolution on a Koralia smart wave. Every time it switches it clicks, is this normal, is there something to do to stop it? Are there any PH that don't click, like the JBJ Oceanstream Circulation Pump/Powerhead?
Yes thats normal. They do click when turning on. It is slightly annoying. As for other ones that dont click im not sure. I know the vortechs dont click.
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