Quote Originally Posted by blakegjones View Post
Yes that is very true. I swopped that brass fitting on the waterbox with the tiny orifice with a connector that has a slightly bigger diameter and used a hose with a smaller ID to add to the pressure loss that I removed by swopping out the small orifice.

I found bits in that small orifice every single time I looked at it which is what made me change it out.
It runs fine with the older full open fitting and regular size hose. That is how the early model 15fs came.