first of all, sorry for the bad english I think drains are a wonderfull addition, but idd love to be able to make some water airlock who dont need external water suply (like access to the ocean, or keeping ocean blocks Inside the building, and so on) so i though of two other items who could be linked to the drain: -liquid tank -liquid dropper so in the end, if we link the drain to the tank, instead of deleting water it put it in the tank, and if a liquid dropper is linked to the tank we can refill the place it could help to do a lot of fancy airlock and stuff (like airlock in ship with Healing water, or coffee) or at least a liquid output linked to the drain, to bring liquid somewhere else (maybe with a fancy pipe system, like wiring one but for liquid)
