Where the hell did the apes get pressurized water for the hose they used on Taylor? And how did they manufacture the hose? Seems a bit advanced for their society, which might be equivalent to a few decades before the Industrial Revolution. The hose could have been salvaged from the ruins of a nearby city, but after 700 years, I'm not so sure it would be anywhere near usable.
- Humans had comparable fire-hoses a few decades before their industrial revolution, but if we're already granting license for semiautomatic rifles (a late 19th/early 20th century innovation), we should probably let this one slide, too.