12-06-12, 05:20 PM
I had this exact problem a while ago and repaired the tank.
After cleaning the tank very thoroughly I braised a steel patch over the hole. I then lined the tank with a two part resin called Restom to try to stop the problem recurring. Four years on and it's still good, so I can recommend it.
The resin came as a kit with degreaser and an anti-rust treatment which you use to prepare the inside of the tank before applying the sealant compound itself. It's French, and doesn't advertise a distributor over here, but I found it on eBay from a chap going by the username hotsun314. He's not currently listing the stuff, but I see from his feedback that he did sell some last year so it might be worth an enquiry. Alternatively, you can get it direct from the manufacturer.
After cleaning the tank very thoroughly I braised a steel patch over the hole. I then lined the tank with a two part resin called Restom to try to stop the problem recurring. Four years on and it's still good, so I can recommend it.
The resin came as a kit with degreaser and an anti-rust treatment which you use to prepare the inside of the tank before applying the sealant compound itself. It's French, and doesn't advertise a distributor over here, but I found it on eBay from a chap going by the username hotsun314. He's not currently listing the stuff, but I see from his feedback that he did sell some last year so it might be worth an enquiry. Alternatively, you can get it direct from the manufacturer.