Vortex has to different types of cat pumps
4.5 gpm that will give you 2750 psi
or the
6.5 gpm that will give you 1750 psi
the 6.5 gpm will power 2 spinners
Mine has the 4.5 and I tried it and it lost to much to work well
A friend of mine has the 6.5 and I helped him do a tile job and his held great.......