115 PSI? why would anyone need that? I have worked with a 35 psi pump and it's totally adequote.
It must be 12 years since I sweitched to WFP, still using the same Surflow 60 psi pump with a varistream. Once you disconnect that pressure switch and let the varistream take control it will pump at 130 psi with everything turned to maximum. THe pump is the same only the presssure switch was differnt, once disconnected you can wind it up until it's popping connectors.
But for what? You only neede an adequote supply of water, jet washing glass sends spray over to the pane you just cleaned.
Using a greater flow rate is better controlled with jet size, flooding the glass makes for less rinsing, but do it gently.