Shut off your filters till it settles or you will clog them up for sure
I used playsand, which is finer than poolsand for my 55. It was more work than I thought it would be, but after the fact, I wouldn't trade it in for anything else. I have a DIY reverse undergravel filter and plenty of plants so I wanted a fine substrate. I also liked the look of it and the $4.50 for substrate in a 55. The first time I put in the sand, I hadn't washed it enough, and it clouded up my water something terrible. taking it out, scoop by scoop took 15 minutes, and once washed, it settled to the bottom without making anything clouudy pretty fast.You're going to regret getting pool filter/play sand. That stuff is too fine.
I got that PVC pipe broTry dumping it through pvc pipe