Optima RO/DI flush question

[delfinparis]

Does anyone know how to perform a flush with the Optima RO/DI Professional? I think you just open the valve on the black hose, but I'm not sure.

I can't find a user's guide on their site. If anyone has a pdf of the user's guide, I would appreciate it. Thanks!

 

[drstupid]

you open the valve on the black hose.

their support is terrible, luckily their product is made from standard parts.