Just a quick heads up.
Sometime ago the powers that be, outlawed the use of double 90's for end hoses.
The simple reason being that if the pump plugs, and the operator is inattentive to the plug, the end hose will swing wildly with
 potential for severe injury to the hoseman.
Of course the operators we'all use are never inattentive are they? lol.
There are at least 3 alternatives to a double 90 for ICF's that I know of.
 The SH hose from Putzmeister, Conforms Ruffneck hose, and flat dry powder hose.
More info can be found at the website of the American Concrete Pumping Association.Work safely.

I bought the Conforms Ruff neck when it first came out, saw it in one of my concrete magazines. I love it, although now they are a bit costly...think long-term return, just like ICFs.

I was at a job recently where now one of the pump companies I used years ago, now has their own ruff neck on the truck!