I just build this rig.
2 Mounted Machines.
1 - 25 Koler - 10 GPM / 3200 psi pump w/350 Hose.
1 - 22 Koler - 8 GPM / 3800 psi pump w/250 Hose.
Remote control engine start/stop with remote 2 chemicals.
350 GL water tank with fire hose adapter
125 GL chemical tank with direct feed to 10...