Need some help

:wave: Welcome to TFP!!!

You filter has a push/pull backwash valve. The pipe out the bottom that goes into the ground is your backwash pipe. Figuring out where it goes is up to you to figure out ;)
 
I would not think there are any other valves.
I think you just have to turn the handle and pull up and then turn it to lock it up? Been 8 years since I have used a valve like that and I can't remember.
 
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