Built in macerator?

[Tipper]

I'm currently staying in a hotel in Swansea...jokes not required lol...anyway the bathroom has what appears to be a duo-flush loo. The larger part of the button flushes the loo, however when the smaller button is pressed there is no flush and just a whirring sound of a motor running. Is it a macerator or some other feature although I can't think what? Not seen this before. There's no mention in any of the several notices stuck on the tiling.
Cheers.

 

[bernardgreen]

Peidiwch â gwasgwch y botwm bach

.


Swansea is in Wales,

 

[Tipper]

I wasn't going to go there! I want to get out in one piece this morning!!

 

[bernardgreen]

Are the button side by side and does the small button also cause water to flush ?

Two options for the little button.

[1] it starts a full flush which is enough to trigger the mascerator to pump out. The half flush from the large button not being enough to trigger the mascerator on a single flush.

[2] it is an electrical over ride to start the mascerator. ( I have seen this in an apartment in Paris ).

or it could be something else. Welsh plumbing can be a little unconventional. I married a Welsh lass and found some odd plumbing in houses there. A newly refurbished hotel in Aberwystwyth had the toilet cisterns fed from the hot water supply.