I think previous pool owner used aquarium sand

afallucco

Member
Jun 7, 2022
7
Ohio, USA
Hey everyone.

To give some background when I bought my house previous owner had already setup a bestway pool that came with a flowclear sand filter. Opening this year my slam has taken multiple weeks. Cloudy water just not clearing and I try to brush and vaccum as much as I can. I always thought it was because the sand filter was small but finally broke down and decided instead of buying clarifier I would replace the filter sand. To my surprise what was in my filter looked nothing like the new sand I bought from the pool store. The old sand is much coarser and looks more like aquarium sand. Has anyone seen this before? I was having to backwash multiple times a week before putting the new sand in.

I've seen noticible differences overnight in cloudiness with the new #20 .45-.55 sand from the pool store.
PXL_20230617_011226012.jpg
 
buying clarifier
Sure glad you didn’t do that. That’s not the TFP way.
Has anyone seen this before?
Looks like playground sand. I’m of the opinion anyone that takes over a sand filter from someone else should just replace the sand. You don’t know what they did or didn’t do to it. :)
 
Sure glad you didn’t do that. That’s not the TFP way.

Looks like playground sand. I’m of the opinion anyone that takes over a sand filter from someone else should just replace the sand. You don’t know what they did or didn’t do to it. :)
I know clarifier isn't the tfp way but I also read on tfp it's OK on occasion especially after bad algae blooms to clear the water with sand filters as some of the particles may be too small.
 
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