Need Manual for D&S RO Unit

[PostRock]

I just purchased a carwash that has a D&S model DSSFR5 RO unit. The date on the unit is 1997. I contacted D&S and they don't have manuals that go back that far. Does anyone know where I might be able to get a manual for this unit?

 

[MEP001]

There isn't much to that system. I'm familiar with them and can answer pretty much any question you might have.