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Hi This May Sound A Daft Question To You Guy"s Who Know About Plumbing Things, But My Question Is, Does The Amount Pressure In A Combi Oil Fired, Sealed Central Heating System, Bear Any Relation To Poor Flow At The Hot Water Tap. ie- Currently The Pressure Is Set At 0.7 bar If I Were...

Hi, I own a worcester, heatslave 15/19 combi oil fired boiler, now its never been fantastic at supplying gushing hot water to the bath tap, but we could live with it, my real problems began when i put in a new 25mm by 50 meter water mains pipe under the the garden, we never had great mains...