I recently bought a house with an 8 year old in ground liner pool that is 40X20. When I ask the previous owner if he had changed the filter sand he didn't know or couldn't remember!? So I would like to change it I guess mainly to start fresh and keep track of it. The filter is a Ranger and I believe it is 25" since that is what it measures across as well as up and down. What sand should I use and is there a difference in silica sand. I am all about trouble free since I am an airline pilot and am gone several days at a time. Thanks
There is rarely ever a need to replace the sand. You could inspect it and try Deep Cleaning your Sand Filter to see if there is a reason to replace it.
Unless something unusual happens there is no reason to replace the sand. If you are just being through, all you need to do is to deep clean the filter.
Thanks for the quick replies! I should have mentioned that I got bored and couldn't sleep last night so I took a shop vac and sucked out the filter! I'm just weird like that! Wasn't that bad but definitely should have tried the deep clean first! So I started googling "pool filter sand" and most all say "sand" not "silica". I was looking at the Aqua Quartz because it specifically says #20 Silica but I also saw Quikrete and HTH but both say SAND not Silica. Hope that makes since and you can see why the confusion.
"Sand" is mostly silica. For all practical purposes in relation to a pool filter you can use either term. Too bad you couldn't sleep as it could have saved you the trouble and expense. Doing that deep clean does help restore a filters performance considerably. I just learned about it and did the first last year. Will be doing it again as I just got tired of rinsing it and kept getting stuff floating up out of it so finally stopped and buttoned it up !! This year I'll be more through as I won't have as much stuff in there to get out
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