Hello,
This will be a one off purchase for you so it is important you get it right.
Our first kit was a polar vac, we used it for two hours and never again. The head was uncontrollable and the hose just got heavier and heavier as the sludge built up and the window cleaning pole made it far too flexible.
We then had the Omni poles they jammed terribly.
We then developed our own kits.
It would appear that lots of people get on with both kits, they just didn't suit us.
So before you buy, try them. You are welcome to come and try ours.
We have actually cleaned approx 12,500 metres with our kits in six months.