Water pressure troubleshooting guides

Identify water pressure problems including low mains pressure, boiler pressure drops and fluctuating system pressure.

  • Boiler losing pressure overnight

    Advice Hub / Water Pressure Boiler losing pressure overnight Check time: 5–10 minutes • Difficulty: Easy checks • Safety: Low risk Quick summary This guide explains common causes and safe checks related to boiler losing pressure overnight. Safety first If you smell gas or suspect CO, leave the property and call 0800 111 999. Do

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  • Low water pressure in house

    Advice Hub / Water Pressure Low water pressure in house Check time: 5–10 minutes • Difficulty: Easy checks • Safety: Low risk Quick summary This guide explains common causes and safe checks related to low water pressure in house. Safety first If you smell gas or suspect CO, leave the property and call 0800 111

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  • Expansion vessel failure explained

    Advice Hub / Water Pressure Expansion vessel failure explained Check time: 3–5 minutes • Difficulty: Easy checks • Safety: Low risk Quick summary This guide explains common causes and safe checks related to expansion vessel failure explained. Safety first If you smell gas or suspect CO, leave the property and call 0800 111 999. Do

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  • PRV valve discharge explained

    Advice Hub / Water Pressure PRV valve discharge explained Check time: 3–5 minutes • Difficulty: Easy checks • Safety: Low risk Quick summary This guide explains common causes and safe checks related to prv valve discharge explained. Safety first If you smell gas or suspect CO, leave the property and call 0800 111 999. Do

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  • Water pressure dropping when tap runs

    Advice Hub / Water Pressure Water pressure dropping when tap runs Check time: 5–10 minutes • Difficulty: Easy checks • Safety: Low risk Quick summary This guide explains common causes and safe checks related to water pressure dropping when tap runs. Safety first If you smell gas or suspect CO, leave the property and call

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  • Low mains water pressure: what to check (before buying a booster)

    Advice Hub / Water Pressure Low mains water pressure: what to check (before buying a booster) Check time: 5–10 minutes • Difficulty: Easy checks • Safety: Low risk Quick summary First confirm if low pressure affects the whole property or just one tap/shower. That tells you whether it’s mains or local restriction. Safety first If

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