When you say push fit connector do you mean the white insert you push into pole hose?
As if you ain't got the white insert that's the problem.
They supplied an insert with the yellow hose for all applications.
They then only supplied an insert for the orange hose if you were using hot water. If you said you use cold on the order form they give you orange hose without the insert.
If you order a unit to be used with hot water, they supply red hose without an insert.
(It was like that a couple of months back).
Spruce