Posted on Twitter prior but I will copy-paste what I had from there-

"Summary: the Hyper Hydrant is meant to be another supportive sub-weapon with a slightly higher risk on usage due to its ink consumption. When used effectively, you can sacrifice an ink tank of your own to get a couple extra for your whole team.
Effect: the Hyper Hydrant would create a radius of effect that increases ink recovery surrounding its placement. It can be damaged and destroyed by enemy fire. Efficacy diminishes as you move away and as time progresses.
I believe it is most like the Sprinkler in that it can be destroyed and it's effectiveness wears down over time (and that you can only have one deployed). Though, I think its radius as well as it's placement options should be limited in some way and its health should be higher.
Ideally, I think that this sub would be best on weapons that do not cover a lot of ground or weapons that are not typically found in midline/backline or "central" plays (though, please comment on this part, not entirely sure how this would be).
Ultimately the point of this sub-weapon concept would be to add a support option that could reward timing in pinch or tricky situations or reward a good setup or touch-point. There's a lot of grey area on this still with more value specifics so feel free to share your thoughts!"

Not really looking anymore to edit the concept but I don't mind comments either way! I have a few other sub-weapon ideas that would probably be a lot more like what is already in game, haha!