Hi. my 3 year old cat has been blocked twice (6 weeks ago) and is recovering slowly so not out of the woods yet. He has sandy sediment in his wee, no stones. He is on a royal Canin s/o diet - my question is if I give him other foods I.e mixed in with this so he will take his meds Or give him cat soup to increase his fluid intake as he drinks no water at all is that undoing the work of the S/O diet? I've also read that adding Apple cider vinegar also helps.....? and what are your thoughts on kattovit urinary? He loves the 85g tin as it’s a mousse but don’t know wether it will do the same job as the royal Canin s/o Appreciate anyone’s help - it’s so difficult talking to vet with covid restrictions.