Actually, I've been thinking about a rapid liquid applicator. Be it magma or water, the goal will simply be to output as much water as possible in as short a time as possible. This involves several pumps facing towards a center tile, so that the fluid is being pushed to one central column. When this column is opened at the bottom, it will NOT enjoy pressure from the chamber, as the 4 pumps facing inwards will clog the area and prevent regular pressurization. However, it WILL enjoy pump pressure, which can be several magnitudes more terrifying. Anyone who's toyed with pressurized pumps before will know how this works, with a pump pressing water into a tunnel it can move water at a rate of 7/7 every few frames, which is enough to rush through a pipe pretty quickly and overflow it. However, 4 pumps facing a central open shaft, will pump 4x as much liquid, giving a faster flow. 5 layers deep, that's 20 pumps providing constant pressure down a tube that will far surpass traditional pressurization. Done correctly, this can easily result in superpressure pumps that can deliver a solid 1 tile wide tube of liquid to nearly any corner of the map near-instantly, promptly overflowing. This could be used to have one central reservoir that can instantly cause several locations to overflow, not from timing of valve release but simply from speed of fluid. The pressure would be so high as to make the flow of liquid nearly instant!