Shower in the clubhouse, two shower spots and a wall inlet

Hello,
in a club house, there are two shower places arranged at a corner with a wall drain beneath the faucet of one shower.
The water from one shower therefore flows over the other shower place.

This has now become a topic of discussion because in the [Arbeitsstättenrichtlinie 4.1 (6.4(2))] it states that the shower water must not run over another shower place. But it is just an ASR, and the club house is not a workplace.

Can someone help me?

Best regards
Hans

Where there is no plaintiff, there is no judge?

Furthermore, guidelines are not binding?
And if it does not have to go over it but can, then where is the problem now?

The plaintiff is a member of the association. So plaintiff, judge, and defendant are the same person. The water always runs over the other shower space. One person is therefore always standing in the "dirty water" of the other. In swimming pools and communal showers (generally public showers), the shower water is always drained in such a way that it does not overflow onto the neighboring shower space. Which also makes sense.

I am looking for a document that states that it does not matter in a private house or association house (comparable).

Maybe someone can help me.

Best regards Hans

Okay, but this is actually a case that can be changed, right? The situation is not particularly great now. I'm also at the end of my knowledge then :)