Originally Posted by andygrif

We've had a Brita one for years and it's been great (and kept the crunchy bits at the bottom of a cup of tea at bay).

But about 10 days ago the supermarket was out of stock of the genuine filter replacements, so I bought a Tesco's own brand one (which was also over a quid cheaper)

We've just thrown it away as it produced a bright green waterline mark around the inside of the jug. So I don't think we'll be buying one of those again. They may be cheaper, but bright green stuff in the water is not my idea of healthy.