Choose Your Sink Carefully To Prevent Splashing
If your new kitchen faucet is sending water splashing everywhere, it's not defective -- it's just likely either too tall or too strong. While there's no set formula for choosing a new kitchen sink that won't splash, there are ways to lessen or stop the splashing. Obviously, you can change out the entire faucet too, but try these tactics first to save yourself the trouble.
Flow Rate and Velocity
Reducing the flow rate and amount is a common way to stop splashing. Lots of water coming out of the faucet very quickly will hit the sink hard, causing droplets to ricochet out onto the counter. Retrofit your faucet so the flow is slower, like 1.5 gpm. If that doesn't work, see if the faucet has an aerator. These are questionable in terms of stopping splashing; Lacava says an aerator will slow down water flow, but Attic Mag says the aerator will speed things up. If you have an aerator, try replacing it with a laminar insert; if you don't have an aerator, try installing one.
Hitting the Spot
Where the water hits in the sink is an issue, too -- if it hits the side of the drain, for example, that can create splashing. Try moving the water stream around to find spots where there's no splashing. Surprisingly, adding a sink grid might help. The grid can break up the water stream and slow it down. Of course, if the water hits the grid at just the right spot, it could send water flying.
If all else fails and you have to get a new faucet, go for practical considerations like the height instead of looking at fashion. If you have an older, relatively shallow sink, do not get a tall faucet. For example, Lacava advises using a standard-sized faucet, rather than a vessel-sink type or tall arch-type, for sinks that are less than 4 inches deep. If you remember the faucets you or your parents had in the 1980s and 1990s -- the flatter ones that didn't really arch -- try those. Faucets that send out water from far above the sink need deeper sinks to contain splashing. Also be sure the faucets have lower flow rates if the sink is shallow.
In the meantime, try to position the faucet so that the water hits the curve where the base of the sink starts to turn into the wall. That can often stop a lot of splashing, but it won't work for all your needs -- that brings the water too close to the wall and limits the space you have under the stream. But it should help until you can get a new faucet installed.
For more advice, speak with an expert like those at Gopher Plumbing Supply.