Just to clarify,
One-Step have now introduced a new concentrate formula that is about 6 times stronger than the original One-Step Carpet and Upholstery Cleaner.
They recommend you dilute it at 60:1 for maintenance cleans, and 30-40:1 for restoration cleans.
So it's now the cheapest microsplitter on the market as far as I am aware.
Cheers
Matt
Cleansmart Supplies