Zinc hose adapter

[zoanutty]

A couple of weeks ago I heard water leaking in my laundry room and it turned out that it was my plastic hose adapter that had broken. I couldn't find another at my hardware store so I hooked up the RO/DI to the water heater line. I'm not sure why but it is running extremely slow, yielding only about 20 gpd as opposed to the 100 gpd it is supposed to give. All filters and membrane were recently changed so the only thing I could figure is that the water heater line doesn't have as much pressure as the laundry hook up so I went on a search for a plastic dual hose adapter. Turns out they have been discontinued, so the only thing that was available to me was one made out of zinc. I did some preliminary searching online but couldn't find anything that would tell me if this is safe to use. For reference, my tank evaporates around 10 gal per week.

 

[Randy Holmes-Farley]

A zinc adapter is fine before the RO/DI.

However, the RO membrane can be damaged if the water coming to it is over about 113 deg F. So make sure it isn't getting water that is too hot.

FWIW, higher temps usually result in higher flow.

 

[zoanutty]

Oh no, it's not from the HOT water line, but from the cold.

 

[Randy Holmes-Farley]

OK, that should be fine. Not sure why the flow would be low.

You can do anything you want in front of a good RO/DI. It will make good water from sewage.