We have have a number of stainless steel lines to install but have found carbon contaimnation adjacent to the weld area, it seems like carbon brushers have been used. Can any one advise a suitable cleaning method bearing in mide the site has strict rules on chemicals being used and pickiling is...
We have a 30" ball valve on site which when trying to install had some minor damage to the drain pipe and vent pipe. Would it be permissible to repair these items and still retain the valve warrenty- insurance.
