Hi channelvaps. Thanks for the pm. Glad to hear you've got the leak solved and happy you're ready to start slamming again!
Just to refresh this a.m., when you test this a.m., can you also tell us how the water looks and if you appear to have gotten most of the debris removed previously?
Once your ph is at an acceptable level, eg 7.2 or higher, forget about any other additions etc. until you've nailed the slam and pass the overnight chlorine loss test. When you're slamming, ph cannot read accurately anyway, and anything else is a distraction from the prime objective
I know you're nervous about this, but after this slam, you are going be happily in control of your pool, so no fear
The key to being done with this is once you calculate your slam number based on your test results, to be merciless in keeping the number at slam level without letting it drop - that is the fastest way forward with no backsliding

so make sure you have enough bleach/liquid chlorine on hand so you don't run out.
I can't wait to see the results!
Total side note to kiss4afrog - re:
It's toxic to plants and lawn so you have to be careful where you put backwash. You don't want to use it to water landscape plants. They can be much more sensitive to it than grass.
Borates/boric acid/boron is actually used as an agricultural supplement due to its low toxicity and ant-fungal properties. In the dose used in a pool, eg 50 ppm, (.005%) it really shouldn't be at a level to hurt plants. However, there are other things that plants may not love, such as the salinity from added salt or even the byproduct salinity from using chlorine etc. With borates, its all in the concentration. That's why it is safely used in soaps/shampoos/eyewash/lotions/ etc. I just didn't want anyone extrapolating that a pool level of borates is particularly toxic. Cheers.