Hello there !! I didn't place this in the plumbing section because I don't think it's a plumbing question !! I ordered a kraus vessel sink and waterfall faucet which was delivered yesterday. Prior to ordering the sink I measured my current drop in sink at 21in. Therefore, I thought the "standard" vessel sink of 16.5 in was okay. However, the sink looks HUGE and the faucet even more so !! In the enclosed instructions it shows how many inches the faucet must be from the back splash and how many inches it must be from the sink as well. Are these mandatory or just suggestions? My counter top is only 21 3/4 in depth so I may run out of room for inches !! Does this size sound sufficient to you ???