[MarkSutcliffe]

Looking at using my limited budget on another machine..

Currently have 100 psi extracta exel

Looking at a alltec pro plus 135..

Very limited budget..

[Jamie Pearson]

135psi is enough.
You just need to do good prep work.
Its the prep that cleans the carpet.
The machine only rinses.
If the soil is already loose then 135psi will rinse it out.

[Matt Steele]

What he said, on carpets but I use CFR hand tool on upholstery and prefer 200psi for this

[Dave_Lee]

The machine provides the water pressure, temp  and vacuum. The wand or tool provides the rinsing and all/or further agitation, depending upon the degree of soiling. Not all jobs require pre agitation, and indeed sole agitation whilst simultaneously rinsing with the wand is frequently sufficient. Much talk re: the use of a CRB for agitation is very overdone imo. I have owned one in the past and they save a bit of effort, but seem a bit on the aggressive side to me, even with soft brushes.
Some time ago I had an Alltec Pro Plus and it was perfectly good enough, when just using a standard long handled pre-agitation brush, when required.
Dave.