Sunday, 21 March 2021

Blotchy Plaster surface - anything to do?

Hi folks.

I'm mid drain and refill (76%) to reduce my very high calcium levels (1000). I know we generally advise against any kind of acid treatment but it's soooo tempting when looking at this...

Any thoughts? It's smooth all over but does fizz when I splashed some 1:5 MA onto a flat test area.

I have some raised hard nodules that I will be treating locally.

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