You guys know the old saying: "Trust...but verify".... Ive installed the travertine coping on my pool and I'm wondering...do the joints need to be grouted like tile or is the poly sand OK? I was thinking with all the water/splashing on the coping - if the joints are not sealed with grout the water will work its way in between the joints and could eventually degrade the mortar base. I live in So. Calif., so freeze thaw is not a problem. I was thinking more long term - to avoid any problems. On the other hand, I don't want to fill in all the divots and make it too slippery. The joints are very tight, less than 1/16.
What is the general consensus?
BTW - I like telling my my sub contractors: I asked my pool consultants and they say.... (you guys are my "consultants" !!!)
thanks in advance.