I just vacuumed blind lol, I lost suction trying to get vac hooked up, I turned off pump to let it reprime and my pressure that had built to 17 went back to 10 with a good suction on vac head. It didn't take long for it to shoot back up to 17. I don't think I have much debri at all on bottom, I got nothing. I backwashed and recoated my DE. Slowly but surely it is clearing, my chlorine is holding overnight and I had a 4.5 drop during a very hot sunny day