Where do you install your ro\di unit?

[Reef Frog]

Careful with that $2 adapter... I had a cheap and and ended up flooding my laundry room. Luckily I was home to hear the water running

I went to Home Depot and got an all metal one

Agreed. I might have paid a little more than $2. But even good ones are inexpensive. Using a little Teflon tape as a precaution is a good idea,'as is a water alarm,'even if you don't use an RODI in the laundry room. Washed water supply lines break easily if left in service too long.