Cleantech:
About £25:18' alloy pole (3x2m) for trad cledaning etc. Take out the plastic end stop in the top section
Put in a Cleantech alloy pole collar (about £11) - fits straight in - secure by cutting a slot in the end of the top section and put a jubilee clip round it.
Screw on a plastic angle adapter (about £5)
Screw a brush on to the angle adapter - either buy one ready with jets or buy a Bentley from Homebase etc and drill it to accept jets (about £2 each) Or £29.32 for jetted brush, plus delivery
Drill a hole in the bottom end stop and another in the top section just before the pole collar. Feed a length of hose through (about £8 for 30mt). Fit a Y piece to split the feed to the two jets (about £2)
Fit a microbore male fitting in the other end of the hose. (about £2)
Total cost about £89.32 plus delivery - time about one hour

That's why I didn't put a price for a jetted brush. Doing it 'on the cheap' you wouldn't buy a ready jetted Vikan. Even buying an unjetted one and fitting your own jets is much cheaper but for this pole I would recommend using a Bentley or similar because the pole is very light and the Vikan brush would weigh as much as the pole.
A big advantage of the Cleantech pole is that the clamps are the 'twist' type and have inner plastic fittings which will wear over time but you can get replacements for very little
good call on the cleantech pole, i used it for years and it was great
when i had my neck problem, it just would not go away
so after a good few weeks ( allmost 3 months my records show ), i tried the RT Zenflex pole and within the week the pain had eased, then a few days off the pain went, for the next week with the RT pole i had no pain
the Cleantech is a nice hardwearing pole, its just not as light as the RT ( or other fishing poles )