Are the dimensions correct please? I ordered one already and it is 2.75 inches to hold water and from top to bottom. When I saw the add said 3.75 I went out and measured our other birdbath and it indicated a little more than 3.75 and here in Texas we NEED the extra depth to hold more water as it evaporates so quick. I would like to know if this one is 3.75 inches to hold water please - depth. The other one is only 2.75 and I have photos to prove it if I had a place to email them. Totally disappointed. But is this one 3.75 depth?