Very sad to report that my poor little piggie died yesterday in the sweltering heat. Despite our best attempts at trying to get him to stand at the trough and also to drink, he just gave up. He spent his last night stuck in the wallow, exhausted and unable to get out himself. Vet thinks that a mixture of the meningitis and the heat probably brought on exhaustion and dehydration which were causes of death.
If it's one thing I'd like to pass on as advice is that if anyone gets in the same situation is to go for the extra shots from the vet after the initial one just to double ensure. He was fine for a few days in between, but didn't show the same improvement after the second shot, and subsequent daily top ups.
Horrible, horrible to see, and I am very upset, blaming myself for not knowing he was stuck at night, and not spending more time trying to get him to eat and drink. Had to drive his carcass to the local disposal incinerator this morning and am much more upset today than when they usually go to slaughter. I cried like a baby when I had to feed my other 3 today as I had to work out what three quarters of their usual feed was!