Bad for the
vac motors because you're sucking wet foam thru them
I know what it's like to be a broke d1ck ..in particular when starting out.
I've used everything from laundry detergent to Purple Power, to Simple Green trying to save chem costs
I'll tell you from experience, it doesn't pay to cheap out on chems.
If I had to use only one line of chems, it would be
Prochem .
Most of what I use is Prochem products and Flex
Learn to use pre-spray and dwell time (and/or agitation) to do the heavy lifting .
add just enough emulsifier in the porty tank to fit the job.
If light/med soil conditions, use 1/3 to 1/2 of what manufacture suggests .
if you've used a good quality prespray (Prochem makes some of the best) in sufficient quantity, you won't need much emulsifier in the porty tank
If a rat nasty, then use more emulsifier
..L.T.A.