Changing Bathroom Sink?

All depends on how much room you have to work with. Our bathroom sink is not too big, but is about the same size as the ones at home. Have not measured, but it appears to hold over two gallons of water, plenty more than enough for sponge bathing, and shaving. Biggest problem is how long it takes for hot water to get to it, due to the way the cross-coach plumbing is set up.

dcmac214 wrote:
How easy or difficult is it to install a larger sink in the bathroom?

Looking at dealership photos of motorhomes, it strikes me that most of the bathroom sinks appear to be so tiny as to be nearly useless. Not saying we want a kitchen-size sink, just something that's big enough diameter-wise (not so much depth-wise) to be comfortable using without feeling cramped for shaving, washing, etc. Something like what we have in our 5er would be good, oval about 16" wide x 12" x 5" deep.

When changing a sink you just have to be sure that there is room underneath for the plumbing. On my coach, the sink is built in to the Corian countertop so I would have to remove that and have a new countertop manufactured. Then I would have to decide if I wanted an under mount or surface mount sink and if there was enough room for the sink diameter and the sink depth. RV vanities are sometimes a few inches shallower than a residential vanity so it is important that all measurements be taken carefully. Once you determine that a sink will fit, than you have to see if it will match up with your incoming water lines and drain lines. You also need to insure that the faucet that you pick is not too tall to fit in the new sink.
None of these are difficult things to deal if you have the room in your vanity.

The oval bathroom sink in our coach is actually the same as the residential oval sink in our vacation cottage in the short dimension, and an inch larger in the long dimension. It's also an inch shallower than the cottage sink. Overall, not that much difference...

Ours has one of the new tiny sinks. It works OK but washing your hands gets water and whatnot on the counter - very hard not too.
Not too big a deal, I just wipe it up with the towel but I do wish it was bigger. I don't even have room to put in a bigger one.

In our last TT I took out the plastic sink and installed a nice normal one from Home Depot. It was a nice upgrade for little money!

I had Corian and all I did was cut out the old one and install one that we got from lowes and got one just a tad bigger and install it will a new faucet. No leaks and it just sold and that was one of the things the person stated made her choice. WE choose to set it on top of the corian but would not been that hard to put it under.

I have to admit that I grew up in a family cabinet shop.