my mini pig is drinking his urine

Question
I purchased my mini pig Gus in June he is 6months old, Gus was very easy to potty train to go on a litter pad, he only had accidents if a stranger was around or my nephews tried to pick him up. Well about two weeks ago Gus started peeing in the kitchen floor, no big deal at first i just cleaned it up and told Gus no and took and set him on the puppy pad,but the next day Gus would pee in the floor and the drink it up, i give him plenty of water daily and he never drinks a whole bowl i change the water three to four times daily so he has fresh, but i am very concerned that he is drinking his urine please help

Answer
I am assuming that Gus is neutered. Intact male pigs do not make good pets.

Tiny piglets have to go potty often, and they make tiny potties. They also don't realize they have to go until it's too late to hold it any longer. So they step to one side, quickly make a tiny potty and the people never notice.

But as the piglet gets bigger, so do the potties. The people mistakenly think their piglet has "forgotten" his potty training. The pig doesn't understand why something he's been doing all along is suddenly "wrong".

When a pig seems to forget potty training, it's time to start retraining. Pigs learn very quickly but unlearn very slowly, so retraining will take some time. Take piggy to potty as soon as he wakes up, before and after breakfast, at mid morning, before and after lunch, after naps and dinner and before bed. Basically, the idea is to take him to potty constantly, so he's empty and doesn't have the need to make a mistake.

Intact pigs, particularly females, will drink each others urine. Fixed pigs rarely do this. I am wondering if he is drinking or eating something that is leaving an "attractive" (to a pig) taste/smell in the urine. Or, if the problem is that when liquid is spilled on the floor, it releases residue from a cleaning product. Many cleaners smell like citrus.

Clean the floor with any quality product designed to remove pet urine odors. Focus on potty training, and take him to potty before he enters the kitchen. Every time. Yes, it will be a big pain, but the idea is to set him up to succeed. If he goes potty before he enters the kitchen, then (in theory) he should be empty and will not make a mistake.