I would like to know your success with DS or Hydrox on any type of furniture.
and what is the best way to clean.
do you spray and wipe, spray and scrub, etc?

Thanks

DS is my go-to chemical IF I have done the test and it passes.

I pour it into a 3 gallon bucket and whip it into a foam. I dip my sea sponge (if the fabric needs low moisture) or my hair brush deep into the mixture. I then either squeeze or shake off excess. Depending on fabric need. some can take a lot of water as you know.

I apply using the sponge or brush in 1-2' x 2 area and allow a little dwell time. I then use the brush (no matter what fabric) to lather the solution up on the fabric and using a soft white towel I wipe down. I look at the towel to see how much soil has transferred. Then, using a clear head upholstery tool attached to a wet vac or porty, I extract. It is here i can see the foam as it is removed. Once the foam turns all white, I move on.

This process has proven to me to be a no nonsense no BS absolute customer impressing manner of cleaning. AND it is rather silent and rather low moisture. I hit the furniture with an air mover to flash dry.

I use hydrox on mattresses and it is awesome at removing urine stains. (human)

The DS has made many cheerleaders for me. It also help eliminate odors. Most of which, in my case, are food caused.

I usually pre-vac the furniture. Mix the DS and spray on the furniture evenly. I scrub with the brush attachment Rick sells here. Wipe with a terry towel then place a fan or small air mover to dry. Post vac. The above is for synthetics and micro fibers. If I am doing fine fabrics I usually use a specific fine fabric shampoo and apply with a sponge or brush. Then wipe with a terry towel and post vac.
I have not tried it Phil's way. But now I am curious to try it his way. I just need to ask Phil when he pours the DS into the bucket what dilution ratio is he using. I have not tried Hydrox of furniture yet. However I will say I am absolutely amazed with Hydrox on residential carpet.

I am full of steak, salad, laughter and key Lime Pie so I am a tad slow. But 'My Way' is according to the bottle.

I feel certain my success is a combo of scrub and vacuum UNTIL I see white foam.

The first pull (vacuum) will most often bring up/out dirty foam so I stress the use of a clear head for vacuuming. I do NOT rinse with a tool. Rather, I use a quart spray bottle and mist the working area. and only on areas that need a little extra umph.

On spots that I fear may wick, I insure that the area is cleaned, dried, re cleaned and flash dried. I use a bone scraper tool to work any hard areas free (like gum or 'unknown goo' whilst I vacuum.

I have tried the pre spray method but found it to leave the upholstery wet. Not that wet is bad but wet tends to hide other spots or dirt that need further love.

There is a sweet spot I found and it is got more to do with how much foam one has rather than how much juice has been poured. I am looking for a shaving cream type of lather ON THE FABRIC and a bubble bath look in the bucket.

OH... the brush/sponge tends to hold soil so the water/solution will turn dark sooner than the foam will go.

so mix no more than 2 gallons and change often. I use plenty of white towels. They need to be damp. Not dry. I do not use the rag to clean but wipe then look at it, this tells me what the soil load is for that area.

The arms tend to need extra attention right where the fingers hand over the front edge. Then the seat center followed by the back, top, where the head meets the chair or where the hand would land to move.

I do several a week. And I do mean 'several'.

on average how long does it take you to clean a standard 7 ft sofa?

I have no average since my focus is on office chairs and such.

But maybe this will help? I do 55 high back chairs for my local chamber and they take about 15-20 minutes each.

Having seen others work I am convinced this method is at least twice as slow.

If you are knocking the socks off your customers and keeping the competitors at bay. Then it sounds like you got the right combo of speed and method of cleaning...