What does the "whirlpool" setting do?

[jsthomps]

Hi,
I just bought a house that has a pool. I have a Jacuzzi Sand Filter With a Dial Valve. The settings are:
- filter
- backwash
- drain
- rinse
- winterize
- whirlpool
With the exception of "whirlpool" I know what each setting does. What does the “whirlpool” setting do? Is it the same a "recirculate"?
Regards,
Scott

[Guest]

Just a direct flow back into the pool. Pretty useless unless you have a fountain or something. Also good for leaves and bugs, but nothing passes through the sand in the filter

[mj]

What is the rinse setting on sand filter for?

[paulbest]

The whirlpool feature bypasses the filter. The reason for this is that the filter will decrease the water flow and pressure, so bypassing it will create greater flow from the return line.