Sink holes are larger than o'ring on faucet
The hole dimensions in the Porcher sink are too big for the o'ring and mounting plate assembly of the Hansgrohe faucet.
The holes in the sink are 1 3/8" across. The o'ring does not set ON the porcelain, it is almost fully visible in the hole. The brass of the mounting plate sets on the porcelain directly.
This will cause leaks. Does anyone have ideas? Are the secondary o'ring sets available?
Hansgrohe interaktiv metro faucet 4" or 8" widespread lav
Porcher Calla II sink