HI I AM AN EXPERIENCED GAS SAFE ENGINEER BUT JUST WANT TO CHECK SOMETHING WITH U TECHIES IWANT TO INSTAL AN EXTERNAL 12 LITRE EXPANSION VESSEL TO 28CDI BECAUSE OF 9HR JOB IF FITTING INTERNAL ONE INO ICAN CONNECT TO ONE SIDE OF BOILER ON THE FLOW OR RETURN BUT DO I USE ROBO KIT AND INSTAL...
