I've recently puchased a new house that has the bolier in the utility room (Downstairs) and the tank and pump are located in the airing cuboard
- above the stairwell - the system works well - however there is a lot of LF nose from the pump. There is a cavity below the boiler (trianglar in shape above the stair well) - The boiler is lagged as too the pipes but I still hear a LF "rumbling" whenever the heating is running - this is noticiable in the shower room (Next to the airing cupboard) and more importantly downstairs.
Any ideas how I can rid the noise??? I've tested each pipe and any movemnt shows no difference.
Is it the actual pump resonating through the tank that is causing the noise??
Any help would be gratefully recieved.
Thanks