Cleaning filter Q

[kayaknva]

Hey, I need to clean my filters in my 355 and was wondering what you guys use to clean it. I have been reading around several websites that recommend having 2 sets of filters so you can put in while soaking the other. The guy that installed it said to use the 'purple stuff'.
What do you use for monthly filter cleaning?

Thanks in advance!!

[Brewman]

 Any good spa store should be able to sell you filter cleaner.  Don't know if one brand is better than another, I'd suspect they all work OK..
But having 2 filters to swap out is a good idea.  It takes an overnight soak to get them cleaned, and when you have one soaking, you can put the other one in the spa, no delays.