Water pressure not right.

The toilet cistern is continually filling up with water and overflowing leading to a constant stream of water out of the overflow pipe. Also the water tank upstairs is un-necessarily filling up with water. Is this a problem with the water pressure, and if so, has anyone got any suggestions on how to fix this?
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Lee wrote:

Post to this group: uk.d-i-y
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snipped-for-privacy@blueyonder.co.uk (Lee) wrote:

No, it's not a problem with water pressure, it's a problem with maladjusted or worn-out internals in the toilet.
See www.toiletology.com for everything you ever wanted to know.
-- Doug Miller (alphageek at milmac dot com)
How come we choose from just two people to run for president and 50 for Miss America?
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