Prepare a footing and set a guide-line at the desired height. Pour the concrete (4000 psi) into the footing. Set the block in concrete, top even with guide-line, leaving a joint between blocks. Return and mortar the joints between blocks once the concrete sets properly. Good luck with your project ;-)

I too have tumbled travertine pavers (walnut color) and live in much too sunny Florida. I enhanced my pavers. The StoneTech enhancer is also a sealer. I love the way the true beautiful colors come out when its enhanced....its what sold me on travertine. I don't prefer the chalky look. The enhancer/sealer does not make the tumbled travertine slippery. The water will bead when it rains. I am in the Tampa area and the sun fades out the enhancer in less than a year. I re-enhance every October/November. Since the sun is less strong in our winter months, it lasts nicely thru to June. Then starts to look more chalky in the hot summer months. Chalky is the best word to describe it since the stone is not faded. The surface must be dry for a few days, so its impossible to enhance it in the summer when it rains daily. I wait for 5-7 days of no rain on the surface. I do a small area 10x10 at a time. You put a light coat on with a paintbrush (thats what I use so as not to waste it), let it sit for 20 minutes and wipe off the excess. I do not recommend doing it in the middle of the day in the hot sun. You don't want the enhancer to actually dry, it becomes harder to wipe off. Its like you buff it. I just use an old towel and toss it when I am done. The enhancer lasts for several years in the areas that are not touched by the sun, so I only re-enhance the area not covered by the lanii roof. In 5 years I have only done the lanii covered area twice. I just redid it because we had to have new drains put in and i really had to scrub the stone to clean up after the workers. I use to post several years ago, I am not sure if my pool pictures are still on these threads. I love the enhanced look and it gives it a little protection.

Hi Donna, I am curious as to how you solved the dilemma. Did you seal/grout/seal or grout/seal? I live in the Virgin Islands as well and I'm currently having this discussion with a contractor I hired to fill the holes, some of which are massive. He thinks that seal/grout is the way, whilst I think opposite. Would really appreciate your input.

Congrats on choosing one of the most beautiful and bullet-proof stones out there. You need a sealer. Not desperately — VA Mist is tough. But yes, installers should seal it. And you should seal it as soon as water stops beading — assuming that ever happens. Again, it is a tough, nonporous granite. Do you want to enhance it? IMHO, enhancer is mostly for natural stone backsplashes where you want the grain or colors to darken and pop. If you have a sample of your stone, run a damp cloth over it. There. That’s what an enhancer will do. So far as I know, an enhancer offers no further protection but having used them only on backsplashes, I may be in error.