Backwash question

[Jeffski]

How important is the rinse cycle and what does it do? I was not taught to rinse by my PB and have never done so.

[Watermom]

You should rinse for about 30 seconds or so after every time that you backwash. There is probably a small clear sight glass. You can tell when the water is clear. It usually takes around 30 seconds for my pool. (At least this is true for sand filters. If I am wrong about DE filters, somebody please chime in.)