Instead of having a dedicated tech for a smaller tank, could a mod option be added that inserts the tanks into the Steam Power technology (which also unlocks the pipes and such) instead? And/or maybe Fluid Handling. It doesn't feel like it makes sense to me for these to be a dedicated tech instead of just part of an existing tech unlock, either with the vanilla tanks (Fluid Handling) or with the pipes (Steam Power) as a prelude to the full-size tanks, so having the option to disable that would be nice.
