This unit is located in France where they use diesel not kerosene. The feed from the underground tank is not getting through to the boiler. The boiler works fine if I connect the hoses up to a remote tank of diesel. I am assuming that a filter is blocked somewhere but there is nothing between the boiler and the tank. On the top of the tank I can see the return pipe, the supply on/off lever and another pipe which I assume to be the inlet pipe. There is also a plastic bung in the centre which can be removed. I have pictures. My question is whether anyone knows if there might be a strainer or filter within the tank and if anyone has ever removed any of these components to clean them?
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View the thread, titled "Underground oil tank feed problem" which is posted in Boiler Advice Forum on UK Plumbers Forums.
what is the elevation and run length between tank and boiler? was there a return fitted all the way back to the tank...if so I would check the return is open correctly(bypass screw inserted/removed depending on pump). it may be that the return is open but if its a long run and lift gasses might be pulled out from the fuel and cause air pockets...a Tigerloop would potentially help(and reduce the need to run the return all the way to the tank which carries more risk of leaks).
alternatively you probably have an air leak on the oil feed line so when connected it will pull air instead of oil.
alternatively you probably have an air leak on the oil feed line so when connected it will pull air instead of oil.
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Reply to the thread, titled "Underground oil tank feed problem" which is posted in Boiler Advice Forum on Plumbers Forums.
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