Re: louder Whisper filter

thx

"David Ditch" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> I have a Tetra brand Whisper 40 filter.
> It was really quiet when I got it. About 4 months later now, its getting
> louder. I change 25% of the water , change the filter and clean the filter
> system every 2-3 weeks. Might I be doing something or not doing something
> wrong?
>
> David
>
>