
Check valve?
Am I supposed to have a check valve for my pool set up? Whenever I start my system I have a bunch of air I have to release from my air release valve. When it’s running, I don’t see air bubbles and I have great pressure.

Am I supposed to have a check valve for my pool set up? Whenever I start my system I have a bunch of air I have to release from my air release valve. When it’s running, I don’t see air bubbles and I have great pressure.
My in-ground pool was opened up about a week ago. Since opening, I’ve noticed that every time I shut my pump off, all of the debris in my skimmer, back flows back into the pool and the skimmer basket itself comes up out of place instead of holding in place. Any ideas what could be causing this? Also, every time I go to restart it I have to let a bunch of air out of my dome lid on top of my filter.
My puppies incision site is a deep red/purple color compared to yesterday. Surgery was 4/21. My vet is closed on the weekends so I can’t contact them until Monday.
I got my 12 week old frenchie about a week ago and I noticed this dark red/brown staining around her vulva area. I have tried wiping it down with a clean cloth every day, but it won’t come off and seems irritated. Any idea what could be causing this?
I just got this sweet girl on Friday! What is a good puppy food to start her on?