Rusty wrote:

Same problem here. Although we've hard water, the rim underside has always
been cleared of scale by squirting the descaler up into it. The water comes
through a large number of 6 mm holes under the rim so if it's scaled up, its
above these holes. Tried descaler in the cistern too, but bad idea. Before
that worked on the scale it softened the rubber washer on the water supply
inlet at the bottom of the cistern which started leaking and had to be
renewed.

We had this problem with the previous toilet, so since fitting this one
we have used descaler blocks in the cistern. When it rots the rubbers
(hasn't yet) they are easy enough to replace.

Lee
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