Does any company produce a fixed bend at 15 or 30 degree range, preferably in black, for above ground use. I prefer not to use an adjustable bend, which are only available in grey anyway.
Alternatively, I could use an orange underground pipe which are available in , though I'm told this is not advisable as the material will degrade in UV. - Comments?
(Polypipe, Osma etc only make 90 and 45 degree above ground fixed bends, but for the underground system 15 and 30 degree bends are also available).