The fiberglass shower pan is all over the place. The curbs which the
glass block rests on are not level, and not even consistently off-level.
Sometimes they slope in, sometimes out. Since the spacers sit right
on the curb, and the blocks sit right on the spacer, this is a problem.
So, much shimming of the first course was needed. Aside from that, the
straight wall went pretty well. We decided to stop at nine courses
(the plan called for ten), and step the top outside corner since it was
getting tall and crowding the light fixture. Also, with steps you'll
be able to look out the window from inside the shower.
The second wall section, which was half straight and half curved, was a
complete nightmare. Aside from the pan being even wonkier on this section
and needing yet more fussy shimming, the plastic block spacers for the
curved part do not fit! They are meant for some other curve: if
you bang the blocks together until they're tight to the spacer, it forms
the wrong curve! So, there have to be gaps around the spacers. Also,
it turns out the curved glass blocks don't have flat tops and bottoms!
They're sloped, as if the blocks could be turned sideways and used
for a gentle curve. So, they don't even sit on the spacers in back.
The spacers for the curved section were next to useless, very frustrating.
On both walls, the end blocks were a real pain: since they're only
mortared on one side, they want to fall away and get out of plumb.
They need to be checked and fixed and checked and fixed over and over.
What was planned to be a two-day job turned into a three-day job, and
we gave up at 2:30am on the third (fourth!) day. Monica needed to get
back to her real job, and we will finish the final two courses later.
This gives me time to supply the glass caps.
This was definitely a high-skill, difficult job, not for the beginner
or the easily frustrated. I'm so grateful for the help, thank you Monica!
If you seek a mosaic artist in Northern California, do consider Monica.