The odor dissipates quickly. Less harmful than peroxide. I always have it on the truck. First thing I use on tannin stains. Peroxide comes out after cleaning.
If it's cgd I would use a Cimex or orbital using an oxy encap. That will take out the majority of coffee stains. Last year I did a small community college with the same problem and it came out great.
First off, is the carpet wool? MANY churches around here have wool, or wool blend carpet....
While encaping sounds great, because there have been prior attempts, I bet my last dollar there is a ton of residue left over. You are going to to need to RINSE THAT CRAP OUT.
The Sally's 40 volume is too strong to put down like that. Better off with a tannin stain remover followed by an alkaline prespray, then rinsed. Afterwards, rather than 40 volume use a 2 part peroxide/ammonia product like vanish or eliminate and let stand on any remaining stains. It work for about 4 hours and should fade those stains out.
No Wool. Commercial glue down carpet.
Do you treat the coffee stains with the tannin first individually or can you include the tannin spray in your prespray then crb?
Treat them first individually.
They don't work as well.
You don't want to over use it. It needs to be well rinsed before using using an oxidizer on the same stain. I find it is a safer way to treat coffee or water stains. Peroxide is much more dangerous to handle and is harsher on the carpet or fabric. There are peroxide based presprays that work well and because they are rinsed quickly they really don't do any damage. Code Red for example. Not effective on all coffee stains but will take out a lot. I have some good success with code Red.
Sometimes, you may find using reduction as a 1st resort works best.
