What is best place to get Citric Acid? for a flush of the engine
 

I have read and read on here, tons of mentions of the citric acid flush and that MB is pricey. Where should I go to find it? I have been up and down Grocery stores no dice, closest find is REAL lemon powder, it is mostly citric acid, but it has juice and ascorbic acid as well..
do I need to look for a specific brand or package? what store shoud I search out?
Thanks,
John

If you have any in the area, try a natural foods/health foods store; that's where I found mine.

Any pharmacy can order it for you too.

Len

Most farm supply stores will have some in stock.

I scored mine on ebay for a reasonable price.