6x4' footprint gives you 24 sq. ft. vs. 21 sq. ft with the 7x3' footprint.
At 4' back, a possible concern would be finding a way to clean the back wall, if keeping clean glass is an issue to you. If you can walk all around it as a pond, then it's not an issue.
GL either way!
At 4' back, a possible concern would be finding a way to clean the back wall, if keeping clean glass is an issue to you. If you can walk all around it as a pond, then it's not an issue.
GL either way!
