I love that water filtration company's byline:
If you're not using our filters, the only thing filtering your tap water is YOU.
Boudster, you'll notice FAR MORE waste water when your filters are clogged. If you have not bought all new filters, a new RO membrane and a new DI filter (which includes the housing) for the unit you traded for, you should do that right away.
Hey, does anyone have a really cheap source of filters for an RO/DI unit where I don't have to buy five sets of filters at a time (ie. as aquasafe canada bundles on ebay, but won't sell as a simple one change set).
I would also be willing to go in with some others of you to buy an RO/DI filter set from aquasafe... PM me if you are interested.