Maybe Eva has to drive 100 km or so to the next IKEA?
Sure, but I don’t understand the problem/the damage that occurred.
Water is spilling out at the overflow.
- Has the metal of the sink bent now?
- Is the rubber gasket between the metal and the overflow (made of plastic) broken/leaking?
- Is the screw broken/snapped off?
You can also "close" the overflow temporarily.
But broken is broken,
the only question is what exactly is broken.
You can also just hang the hose of a washing machine into a drain with a weight (!!), so it should not pop out, there are also weights available in stores for this purpose (to clip on, the hose then always hangs down).
If it can only be connected at the siphon, the washing machine and only in the kitchen at this spot.
So then I can only recommend sealing the overflow. There are several options for that. But bear in mind that the overflow will then be deactivated, meaning the kitchen can flood if you fill it with washing water.
There are also blind caps with seals for siphons. So a screwed connection through which no pipe/hose is attached, but inside the screw fitting there is simply a round piece of plastic with a seal. This way, no water can escape through an unused siphon connection (doesn't matter where, as long as it’s round and standard).
Just search for “
blindkappe” and “
siphon” or “
verschlußkappe” in an image search (e.g., on G**gle).
If the connection (on the siphon’s plastic) to the overflow has no thread or special diameter or something, unfortunately, I don’t know, then in an emergency you can also block the connection. You should know what you’re doing with this. I have done it occasionally until a part was available for the customer, so nothing leaks out.
You can also take a rubber hose with a suitable diameter AND A MATCHING HOSE CONNECTOR and fit it sealing (!) onto the stub of the siphon overflow connection, then twist and knot the rubber hose and before tying the "knot," it’s best to block it (kitchen roll, it shouldn’t flow back into the drain!) or use more professional aids for internally sealing a rubber hose.
To fix a twisted/knot and possibly blocked improvised plug hose, thick household twine (the hemp stuff or whatever it’s called for packages, etc.) works quite well, it’s only supposed to last for a few washes, right? (By the way, I don’t mean strangling the hose with such twine, but fixing a strangled hose in the twisted state.)
A trip to Ikea is unavoidable if the kitchen is not to drown because of a missing (or leaking) overflow.
You can get everything at the hardware store, but what is broken is broken.
IKEA can be 100 km away, if that’s the case A flat tire in the car is a flat tire. Spraying in tire sealant is not professional or safe either, but depending on the flat, probably the way to the nearby goal, the repair.
As I said, I still do not know what exactly was smashed or damaged with a tool. (I have understood that the overflow is leaking.)
So there is no basis for an improvisation measure, only the above guessing and example suggestions can be made at the moment. I understand that doing laundry is important, but I can’t really help beyond this without accurate details. (Or get a professional.)