daniel19831123 said:
Don't you have to drill a hole in the in coming water supply and another hole in the out going drain and plumb the whole thing. I'm not even sure how to shut the main water supply off in this house! Does anyone has any step by step instruction with picture how to plumb an RO unit? I've been looking on the net and the one I see so far are complicated.
You have to either pierce the cold water feed using the fiting supplied or you can get a different fitting to fit the mains feed onto a threaded tap fitting too. All you do is find a point on the copper pipe and screw the fitting on; it pierces the pipe as you fit it! It's dead easy and a small fitting that a landlord probably wouldn't notice...
As to the waste, yes it has to go into a waste point (or you can save the waste water too to use in a hard water tank or pond or put it out into the garden onto plants that need a lot of water like a bog garden). However this simply means pushing the green waste line into a drain somewhere. Mine used to go into the waste feed from the washing machine in the garage.
More tricky is how you save the product water. Personally I have a water barrel in the garage with an automatic top-up. I have a tap on the barrel and simply fill a container quickly from there and then this barrel slowly tops up and stops automatically when full again.
It looks and sounds way more complicated than it actually is.
I've posted photos and an explanation of my set up
here.