On Sat, 2 Feb 2019 23:32:19 +0000, alan_m
wrote:

On 02/02/2019 22:07, T i m wrote:

Like, the bath plug-chain was broken on step daughters bath and I
removed the chain (one of those ball types)

Fed up with the ball type rusting at the water air boundary when left in
bowls full of water I purchased a chain claimed to be stainless steel.
Yep, the actual chain bit is stainless but the two end figure of 8 bent
metal bits that actually fit to the plug and to the hole in the middle
of the overflow are not!

Brilliant! (Not). But I guess they would be less susceptible to the
boundary layer issue?

from all the fittings with
the intention of replacing just that. I am quite ready to find a new
chain *and* plug as a service kit are cheaper than just 1m of the
chain?

I've found that replacement metal plugs with a rubber O ring seal seem
to be better than the plastic/rubber ones with my sink.

OK thanks.

Cheers, T i m