Magic
Have used Texatherm for 4-5 years now, always on commercial low profile. Regularly do 1000 - 1500 sy. yds of carpet in a day using two man team (No problem). One man thoroughly vacuuming, moving small items of furniture ONLY etc. Second man operating rotary / tex. system.
Generally, each pad will cover on average 15 sq. yds....cleaner, outer areas more yds.....dirtier, desk & vending areas less yds, but on average we will cover about 15yds per pad.
We have never taken more than 60 pads on any job, regardless of size, always re washing on-site (simply hand rinse through & reuse) to complete job.
As regards to laundering after job, we just throw 10 pads a time into washing m/c & leave. Never any problem. These pads seem to last for ever and so are very cost effective.