Triton II filters sand change or chemical cleaning?

[pv5490]

Hello! I have a public pool (About 600 users per day) with 6 Pentair Triton II Side mount filters. They are about 3 years old and get backwashed every 48 hours, sometimes every day. I read the manual and it says something about a chemical cleaning procedure. Is it necessary to change the sand in the filters or should I just do a chemical cleaning procedure?


Concrete pool
50x21x1.61 (meters)
488600 gallons

Thanks for all the help!

 

[jblizzle]

You should never need to change the filter sand, unless you let the chemistry get WAY our of whack and calcium scale develops.

It is a good idea to inspect it and do a sand cleaning every year or so. See this post: http://www.troublefreepool.com/thre...ot-how-to-fix-it?p=58929&viewfull=1#post58929

 

[duraleigh]

With that much use, I would certainly open the filter and inspect it at least yearly, if not twice each swim season. That swimmer load is w-a-a-ay more than residential people deal with and you need to look inside and see what's going on, if anything.