Inquiry (采购产品): EX-300 model Hi, I'm a boiler inspector who works for "BI&I" which is boiler and machinery insurance company in Canada. We have a case where a tube busted in EX-300 model.The cause of failure is scale fouling.The question is, how do you replace a tube in these type of boiler?? It is an urgent request!! Thank you **** Hidden Message ***** Christian C?té QC J4B 8N8 CAN Company: BI&I Title: Senior inspector Phone: 514-298-1009 E-mail: ccote@biico.com **** Hidden Message ***** ccote@biico.com