Not even sure where to pick up on this build. Some of this is interesting and may be helpful to anyone crazy enough to attempt a job like this, and some will be just for fun.
Going back to before I put the travertine coping on, I was trying to figure out that bonding stuff and how to make up for my lack of including it in the build back when it should have been done. Turned out to be irrelevant (kinda like the fish) but here is what I came up with.
I cut a steel mesh to lie on top of the cement blocks and wove some #8 copper wire into the mesh at each corner. Those 4 corner wires were to be / can be tied into a bonding wire to be buried around most of the pool. Would it work? Dunno. Don't really care as there doesn't seem to be any electrical shock issue. Maybe because of the coating inside the pool. (?) Anyway, I also installed one of those bonding plates inside the skimmer, and since I went to the trouble to do these bonding add on measures, I'm sure I'll get around to burying a wire and hooking all that up in the near future. Figure even if it doesn't do any good, it couldn't hurt.
Moving on, the travertine was laid over the steel mesh (which goes the entire way around the pool) using a Sakrete topping and bedding mix. I added some extra portland cement in each batch, as well as adding a liquid concrete bonding adhesive in place of about half the water when mixing up the Sakrete stuff. Also
painted the liquid concrete bonding adhesive on top of the concrete blocks as I applied the Sakrete "mud" to lay the travertine pieces.
Was the the best method? Maybe not, but I researched the heck out of how to do this (and most each step of this build) and this is how I decided to do it.
C'est la vie ...
The travertine coping isn't perfect, (the pieces aren't all the same exact size) but it's close enough that only someone as anal as myself would notice any flaws.
The next step after the PermaFlex was applied was to tile the steps. Anyone care to guess what else I'd never done before? Setting tile would be the right answer... So, off to research that project on tile forums. yeah... If I recall correctly, replies to questions ranged from "that sounds interesting" to "that's not how we do things" (I get a lot of that!)
Anyway,
everyone knows you use thin-set to lay tile. Well, thin-set don't play well with the PermaFlex. With PermaFlex, you use the LRB (from back in the Sani-Tred link) to set tile.
BEST part about the LRB (other than it works like a sonofagun!) is it sets up in minutes - like 10 minutes. Okay, that's actually not such a good thing when laying tile for the first time.
Bottom line - you had to work FAST and with very small batches. PITA...
NOTHING on the step area was level
or square, so I'll just call the tile work "interesting" and leave it at that. I think it took me FOUR days (working all day) to tile 2¼ steps! *sigh*
welcome to my world
Done and pretty satisfied with my amateur first tile job
So, even if ya can't use thin-set over PermaFlex, ya still need to grout the tile. aah yeah...
Like I needed another can of worms! Long story short, and leaving out days (mostly nights) of research and some waffling (seriously

go figure!) on what to use, I finally went with SpectraLock Pro Premium grout from Laticrete. Main reason was a 7 day cure time at 90° - I didn't have a freakin' month (28 days) to wait for grout to cure before it could be submerged.
Grouting tile is fairly straight forward and not complicated -
except... this is an epoxy grout (add part A to part B and add that to part C) and the darn stuff dries to a point where it was un-usable in aaah... less than 30 minutes.
On to painting. Did I mention it's an EPOXY paint...? (Dura-Seal - Ice Blue) Had a WHOLE hour before this stuff became useless! Bought 3 gallon sets and only needed 2 - justa FYI. Added sand to the bottom with a sifter (like a kitchen flour sifter) so the bottom wouldn't be so slippery.
Kinda skimmed over the painting part, but it looks great and was easy
other than ya had to keep moving once the paint was mixed.
Dog wants to know where the darn water is!
But, the grout still needed 5 more days to cure. So, I spent some of that time doing the PVC plumbing for the pump/filter. Easiest part of the entire build!
FINALLY time to add the H
2O
Dogs says: "Seriously dad?"
Took just over 4 hours to fill. 1900+ gallons.
Was it worth all the work?
YUP!
My iguana says: "Get back to me when the water hits 90°"
Diving in!
Happy ending. Dog is happy
and wife is happy! Now, I get to re-sod and landscape the backyard before I get back to painting the house. It really does never end...
Thanks for viewing and MANY thanks for all the help along the way!