I did 20 of these on Thursday, the customer had spent £15k on landscaping their back garden then the wife thought it would look nice if they put these planters all around the plinths. 6 months later massive rust stains running down the top and sides. These photo are not the worst of the 20 some of the others look really bad
The top of the centre circle had been eaten away and the rust had penetrated real deep, I was honest with the customer and told him the 10% solution I was using wouldn’t get it any better but I could come back and try a stronger solution but it would cost extra,. He said the planters would go back exactly so no one would see it (especially as they were going to get some plastic plates to sit them in to stop it happening again)
