Well, the real problem here are the morons that think that more water mains and storage tanks are going to stop these fires.
I talked to a friend of mine who is the manager of a water supply system in Washington and he says that because of the LA fires, local officials are asking his group what they are doing to be help crews to fight wildfires. He's trying to find a nuanced way to tell them that they are idiots who don't understand that his water system is never going to be capable of pumping the volume of water that it takes to actually fight a large wildfire.
There are apparently thousands of armchair engineers out there that have no comprehension of the elements that impact pipe flow capacity like head loss, maximum (and minimum) allowable water pressure, pump performance curves and other factors. You can't cost effectively build a water main that can fight a forest fire without creating pressure problems for users on the mains. Those armchair engineers don't know that fire hydrants are intended to be connected to fire trucks that take the water from the hydrants and then pump that water into hoses...so without fire trucks spread all over the place, their ability to fight fires is reduced and regardless of that, if you open up too many hydrants, none of them work effectively, particularly those near the top of a hill. No amount of reasonable money will make a system robust enough to stop a fire. People bitch about government waste and taxes, but they have no problem calling for wasteful spending when it suits them.
Of course, Trump and his minions have never been concerned with actual science and logic and would much rather fall back on moronic catch phrases than actual solutions. "Open the valve!" is the latest dumb thing to come out of his mouth.