Have recently got a virtually new SX15 (thanks Justin) which I have done a couple of interior jobs with it on this machine and it is really very impressive bit of kit - will strip and remove surface dirt off any, well surface (!) with the big blower it is possible to leave the floor virtually dry - it operates the SX much more affectively than the Mosmatic which just clamps to the ground and you find you are slowled by contsntly scrubbing around with the brush edge and their is no form of vac relief - so when you want to run it at higher pressures i.e. over 2000 psi the mosmatic is clamped to the ground - with an SX it floats around easily with hard floor rinfg or brush ring unless you have very bad lippage
I am not including the sx15 with the sale but just to say this is a very effective hard surface TM and good van for very low money plus you could also do carpets more than adequately...