PVC Anenometer Mast

[serowe]

Putting the additional weight on the existing pole - suggest you put at least another retaining bracket lower down - not knowing how much of the original pole you have that is currently bracketed, you should have at least the first 1 1/2 metres retained by brackets so another in between will certainly help.

Also - as your original pole is 40mm in diameter an the one you are adding only 25.4 (ie 1 inch) - you are going to have to use additional very secure brackets to join the two - otherwise you *will* start to see the new, smaller diameter pole, start to move (again this has come from experience where I had to attach a 1.5 metre wireless pole antenna to steel vertical pipes to gain height - they were 50 mm, the antenna 25 mm - and even in a very light breeze, no matter how we tied them together - meta; brackets, cable ties, tape, you name it, after a few hours the antenna was always startig to lean over from the vertical. The *only* way we could overcome this was to buy special mounting brackets designed for this purpose).