I too have had back problems for over 20 years. It is a serious problem for carpet cleaners as I would guess many have to give up the trade because of this.
I have found 5 ways to help myself:-
1. Every 4 weeks on a Saturday morning I have a half hour appointment with a physio. This costs me about £40. It seems to release any tension that is building up in my back
2. Acquired a ramp so no more lifting heavy portables into the van. Cost about £80 - 100
3. Turn down any job that involves moving portables up full flights of stairs. It's just not worth the risk.
4. Went to the specialist Back Shop in Marylebone and bought a back support for the van drivers seat. This is basically an extra seat and back support that puts you in a much better position in the van. Cost £107.
5. Always use a glide.
I had to start taking it seriously because I was heading for premature retirement from carpet cleaning. The above changes have made a huge difference and whilst I will still always have back related problems I seem to have them more under control.
Nigel
www.designcare.co.uk