no clinton, if you work for 20 hours a week, and lets say you work for £50 an hour, thats £1000. your TM will only be running for about 8 hours, so thats £40 per £1000 earnings.
depends how you work but i turn TM off when not in use so for intance, a 1 hour job will be sorting furniture pre spraying and agitating, then TM on, extract for 20 to 30 mins then off and finish the job. if i was doing a smallish living room, the TM would only be switched on for about 10 mins, also, you can do twice as much with a truckmount so you can increase your takings dramatically anyway.
derek