How To, Simply: step-by-step help for tech, home and health

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Kitchen and home myths: fact or fiction?

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Smelly dishwasher, chirping smoke alarm: do you know what the makers say?

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HomeHow to find and turn off your main water valve (UK, US, Germany)The main valve sits where the cold-water pipe enters your home: often under the kitchen sink in the UK, by the water meter in the US and Germany, or next to your own meters in a flat. Turn a handle clockwise, or a lever across the pipe, until it stops.Reviewed by Sonia Abu Bakar, MSc Botany1 November 2026

HomeSmoke alarm chirping? What the chirp means and how to stop itA single chirp every 30 to 40 seconds usually means a low battery: fit a new one and press Test. A sealed 10-year alarm that chirps every 30 seconds, or an alarm that keeps chirping with a new battery, needs replacing (Kidde).Reviewed by Sonia Abu Bakar, MSc Botany1 November 2026

LifeHow to make a home emergency kit: what the UK, German and US checklists sayKeep water, food that needs no cooking, a torch, a battery or wind-up radio, a charged power bank, first aid and your medicines, cash and document copies in one place. The UK says plan for 3 days, Germany up to 10, the US several.Reviewed by Sonia Abu Bakar, MSc Botany1 November 2026

HomeHow to clean your dishwasher filter, and how often Bosch, Samsung and Miele say to do itTake out the lower rack, twist the round filter in the bottom of the tub anticlockwise and lift it out, rinse it under the tap with a soft brush, then twist it back in until it locks. How often depends on the brand.Reviewed by Sonia Abu Bakar, MSc Botany1 November 2026

HomeHow to bleed a radiator: the UK and German steps, and what to check afterwardsTurn the heating off, fit a radiator key into the small valve at the top corner, turn it anticlockwise until air hisses out, close it clockwise as soon as water comes, then check your boiler pressure.Reviewed by Sonia Abu Bakar, MSc Botany1 November 2026

HomeHow to top up your boiler pressure: the three UK filling methods, and the German ruleWith the heating cool, find your boiler's filling link (a blue lever, a filling key or an external hose), let water in slowly while you watch the gauge, and stop between 1 and 1.5 bar on a Worcester Bosch boiler.Reviewed by Sonia Abu Bakar, MSc Botany1 November 2026

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