I found that this worked to remove most, not all, yellow urine staining on the underside of a white plastic loo seat.
1. Lakeland's OvenMate, which is a potassium bicarbonate gel. Paint on with brush provided, leave for 30 mins or more. Wipe and wash off. Obvio
usly take care - don't get it on your skin etc.
2. Finish with T-Cut (a mild abrasive for paintwork) to polish.

5 year old post, you taking the P.?
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Stick it in the dishwasher when the Mrs. is out :mrgreen:
Thanx for the tip about Bar Keepers friend it worked like a charm. I have used it for years but never on the toilet seat. All those nasty stains went in seconds. I usually get mine from Asda.

I had tried bleach, lemon juice, bicarbonate of soda, white vinegar the lot without success. Barkeepers Friend was the only thing that worked.

I wasn't able to replace the toilet seat as it was a soft close and would have cost over £100 to replace so I'm well pleased.

Thanx again

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