SO2 Damaged Impatiens and Begonias

[1voyager1]

I added a couple of heaping cups full of bicarb to our 10k catchment water during the last heavy rain.
I add it at the top of the rainleaders and let the roof runoff wash it down into the tank.

M'Lady says she can feel it in the water.
I'll check pH with the spa kit tomorrow.
If acidity isn't too high, I'll prune them back and use it on them.

Plus, you've reminded me that I need to get more dolomite.
I used almost all I had on the citrus, bananas, avos, etc. just before the fun began.
That may have been a fortunate timing for the application.
Yeah, I'll go to Pahoa feed and grab another bag.
None of the fruit trees seem to be reacting badly.
The avos have been dropping a lot of older leaves.
But, this is the time of year for them to do so.

EDIT:
Just checked the pH of the catchment water.
It's acidity is beyond what the spa water, kit can measure.
I've added another heaping cup full of bicarb to the top of a rainleader and am running a hose into it.
That should mix it into the tank quicker, and as far as the pressure tank too.
I'll continue to let the water run and check pH every so often and add bicarb until it nears neutral.

REEDIT:
I've put 4 heaping cup of bicarb into the catchment tank through today.
A heaping cup has to be close to 1-3/4 cups.
I've put something on the order of at least 6 to 7 cups of bicarb into it.
The pH measurement reaction is taking place at a slower rate but is still too low for the kit to record, 6.8.
It is also probable that I've added the bicarb too much too quickly.
The reaction may be still ongoing.
I'm going to let it sit until tomorrow morning, then check it.