pH 7.4 out of the tap, but pH 8 once all the CO2 and chlorine has gassed off. In Southampton, UK.
Bogwood, even masses of it has absolutely no effect on the pH of my water. It will all depend on the natural buffering capacity of your water whether that would be the same with you or not.
Just adding chemicals is not a good idea as you will simply get a very unstable pH, which is overall worse for the fish, than a stable, higher pH.
If you are looking to soften and acidify your water then mixing RO water with tap water , along with bogwood and perhaps peat moss in your filtration is perhaps a better way to go, to get a STABLE lower pH. This is still not an easy or quick option.
Unless you are absolutely dead set on keeping and breeding certain species that don't do well in your local water then I would just advise finding out which species relly don't thrive in your local water and avoid them.