How to make your own backpack :
1. Get a telephone - any kind that is presently working.
2. Phone cleantech and ask to speak to Justin.
3. Tell him you want a shurflo backpack and what type of pole hose connection you want to connect it to.
4. Pay a bit less than £200 inc vat and delivery
5. Fill with pure water.
6. Lift carefully - it's heavy. (Use both the two backstraps when lifting one handed - not the bit of webbing between them.)
7. Set to speed two for scrubbing and three for most rinsing.
8. Clean windows
9. Repeat 5 to 9 above as often as you can throughout the day.