My base is flooded

[Mubma]

My base is flooded an I dont know why. I have like 15 hull strength, full power, and no leaks. I cant hear any, and I cant see any. Please help.

[admiral1018]

Do you have a puncture somewhere? You can make a hole in the hull and flood the base even with + hull strength if you do things like hit the base with the PRAWN suit.

Check for any visible leaks/holes and use the repair tool if you find them.

[Exxo Black Rabbit]

If you also have storage containers against corners and such they may sometimes hide hull breaches. So do be careful to check the walls against storage containers and devices.

[UCEY]

If you don't have enough foundations or bulkheads, the base will flood until those are built or the weakening structure is removed since things like moonpools, windows, and multipurpose rooms decrease structural integrity until it goes below 0, at that point it will flood.

[hsvtarget]

I'm in the same situation. Have a nuclear power plant upstairs, base is at +97.8 structure, and has never been negative. Lights are on, no indications that power is out anywhere in base, no visible waterline anywhere in base, but if I descend a ladder inside and cross the water line, I start drowning. I am not floating, am able to walk normally, there is no water in the base, but I am drowning anyhow. Same result if I re-enter the base below the waterline -- I am walking through the normally lit powered base, but still running out of oxygen.

[Emurinus]

You base is likely breached somewhere, either from the local fauna or you hit it hard enough with a vehicle. I'd recommend checking areas around your base where you normally put your vehicles, as well as places where hostile fauna tend to be.

Once you find the breach and fix it, your base will automatically purge the water. Bulkheads will help isolate water to certain rooms, though I don't know if they'll automatically drain those rooms if the leak hasn't been fixed yet regardless of where it is.

[hsvtarget]

I've been around every single square foot of the base, spamming the repair tool, inside and out, no effect, and never any reaction from the repair tool. There is no water to be purged. Lighting levels are at max, indicating a lack of breach.Haven't yet tried spamming bulkheads to see if anything develops from that. but there simply haven't been any vehicle collisions, and it's in the shallows, so there aren't any leviathans or other large dangerous beasties about. This is also approximately restart #10, because I have been trying different base building strategies to try to avoid this, assuming that it must be some sort of breach. If there is a breach, it's undetectable; and the no-air below waterline in every single base I've built with this build of the game executable has been 100% consistent. I am so beyond tired of this at this point that I'm regretting buying this game entirely.

[hsvtarget]

Last attempt, I had built on the island where there weren't even the manatee-tjhings swimming about. Same situation, despite the fact that I swam out there and built the base without using any vehicles whatsoever. Kept the base structure positive. Got full lighting inside, good base greetings, etc., but continued consuming oxygen inside the base when below water line.

[Halliwax]

In my last playthough I had something like this happen. Small two-room outpost flooded shortly after I built it. At no point did it have negative hull strength. There were two breaches, no idea what from, which I fixed. The water didn't drain. I left for a bit then came back and it had fixed itself.

[Snowcat]

Tiger Plants could breach your base too. If you plant one in your outside garden and you are between the tiger plant and the base it will shoot at you and do not harm yourself but it damages the base structure instead and you get breaches from it.