Algae in Filter's sight glass

[cipher]

I've been successfully using the BBB method for over a month now. Recently, I went away for a few days and when I returned I noticed that there was some algae starting to form on the bottom of my pool. I shocked the pool and then noticed that the Sight Glass on the Filter has what looks to be green algae covering the bottom half of the glass. I backwashed for a couple of minutes and this didn't clear it up.

Is this a sign that there's something wrong with my filter or will the shocking process clean this part of the filter as well as the pool?

 

[Bama Rambler]

The shocking process will take care of it as you backwash. If you want it clean faster just unscrew it and bleach it a bit.

 

[waste]

Don't sweat the sight glass, it has water in which all the chlorine has been used up with no way to replace. However, it's not a problem because that water doesn't come in contact with your pool's water :-D

If it's for aesthetics, follow Bama's advice

 

[cipher]

Thanks for the info!