Thank you so much! I will definitely give all of this a go however the last three times we completely cleaned the shower out and didn’t use it for two ...

so sorry I forgot to answer your question from the original message, yes the drain is sloped correctly, water doesn’t pool or sit in the mould areas, ...

Thank you so much Dave, yes we have tried that Selleys and we have also tried two other similar products that do the same thing & still mould. We will ...