Does apple cider vinegar help the treatment of feline lower urinary tract disease?

Hi There- My kitty has recently been diagnosed with feline lower urinary tract disease. He's been blocked twice now and been treated, receiving a ton of fluids and special food. We're in the second round of treatment, and I'm trying to find things to do at home to help prevent this from recurring, because if it happens again it's likely it will kill him. I've read that the ACV can help both the treatment and help prevent blockages from happening again, and was wondering if anyone could help me validate this? I've also read that cranberry extract can be beneficial for struvite crystals? Any help would be beneficial.