make salt rust fire extinguishers shut

[Paineframe]

I agree that salt + extinguisher is overpowered, but salt alone is underpowered. Running back and forth from chem dispenser with a mere 9-10 salt tiles to show for it each time is worthless.

Can't you just dilute the salt with something else so that you're only laying down a couple of units per tile? Carry a beaker of salt and add 10 units of it to a 90-unit beaker of water or something, and that beaker will apply 9 units of water and 1 unit of salt every time you use it. When it runs empty, refill the water from a water tank, add another 10 units of salt, and continue on. Besides, 9-10 tiles is enough to block the hall 2-3 times or protect 3-10 doors.

Something definitely needs to be done to make salt removable during the round. I like the idea of having the salt line break after it's stepped on a few times, makes high-traffic areas a lot harder to protect.