How to drain water softener from garage with no floor drain?

[mwshockley]

Is it possible (or even ok) to run a water softener drain line into a drain for a water heater relief valve?

 

[Twowaxhack]

No, it’s not ok. Don’t do it.

I’d replace that flex line with hard pipe also.

 

[breplum]

I've grown fond of using WH flex for a leg off the T&P.