Flexi Furred Up In A Year - Limescale ?

[V8RX7]

I had a complete new plumbing & heating system fitted in copper a year ago.

The plumber fitted the sink with flexis that came with the tap but got them the wrong way around so i thought I'd finally get around to switching them around.

I was shocked to see they are furred up - is this limescale or a reaction with the flux or something ?

We had weeks of green bits of flux in the water - I think the plumber had shares in it !

I've had a quick look at a couple of fittings etc and they look fine as do the other end of the flexis and the tap - which makes me think this is corrosion in the "brass" of the presumably cheap Chinese flexi.

We get a small amount of limescale in the kettle.

Edited by V8RX7 on Tuesday 31st May 12:44

[V8RX7]

No.

They had a clear plastic insert (removed before taking the pic) instead of the usual black rubber seal.

I've checked my bathroom basin flexis and they are all like new - but they were installed perhaps 6 months after this one - it was used as the site tap.

[V8RX7]

I think Bomma must be correct but it does appears to be Limescale - it's hard and generally white, just a bit is coloured green - presumably from the flux.

I can break it up with a screwdriver and it will then crush down between finger and thumb to a wet sand consistency.

However it is only on those two joints, it's not at the other end or in the tap.

I've looked inside the flexis in my bathroom and they are like new.