Eli5 Water pressure

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My house has amazing water pressure from the cold tap. It is connected to the mains supply. I live on the second floor. My hot water pressure is not so good. I understand this is because it is a gravity fed system from a tank to the tap so there is no applied pressure.
What I am confused about is where the pressure comes from for the cold?

ETA: I am in the U.K. my hot water system comprises of a tank which is filled via mains water. The tank heats the water over night via an electric heat source. I also have an emersion heater option to heat water up if I use all of the tank in a day. The water is then gravity fed to my taps hence the low water pressure. The tank was fitted in the late 90’s.

My question was: where does the cold pressure come from? not why is my hot water pressure crap.

I couldn’t fathom how without a pump the cold pressure was high despite it having to come UP pipes to my second floor flat and how that remains consistent.

Apologies if I was unclear. 🙂

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7 Answers

Anonymous 0 Comments

Why would the pressaure stop at the heater? It is a continous pipe through the heater to the tap, as I understand it.

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