Originally Posted by tadpole
I appreciate the offer, Jim, but wouldn't a 1/2" cap drilled with a 3/8" hole accomplish the same results? You irrigation guys deal with PSI all the time, us Water Feature guys are usually only concerned with Flow Rate.
depends if the cap were flat or convex on the inside. if the cap is convex then you stand a chance of avoiding hydraulic cavitation turbulence. i feel that the smooth surface of the extender and the inch long neck may prevent directional changes that may be undesirable.
i might be making more of this than there is but i am thinking that you want to raise the water column with the least amount of distortion.