Sediment in the bottom of an otherwise clear pool

[Mood Pool]

I've been a BBB pool person for over 10 years. Rarely have a problem, and I can usually find the answer here if I do.

Search engine isn't giving me a terrible efficient list of potential answers to this one, so I need to open a new topic.

I have a vinyl lined in ground pool, 25,000gal, with a Hayward s-200 sand filter with Zeobrite (put in about 4 years ago).

Pool water is very clear and balanced, until I brush it...

No mater how much I brush or vacuum, it won't clear, until I turn it off and leave it for about 12 hours. So I'm sure I'm dealing with a filter issue.

So, here is my question:

Do I try a chemical filter cleaner first, and if so, what type of product or chemical name am I looking for? (Zeobrite talks about a salt-regeneration, but I've seen somewhere on the forum not to do that).

Do I try reducing "channeling" with a garden hose in the filter, and how do I do that?

Or is there another first step to making checking for filter issues?

Thanks

 

[Bama Rambler]

Have you regenerated the media according to the mfgs instructions?
If you haven't, that'd be the first thing I'd do.