Poor Hot Water Flow From Mixer Tap

29 Oct 2015
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United Kingdom
I have a very poor hot water flow from the mixer tap in my kitchen. It is a Hansgrohe single lever mixer and all other taps work perfectly. I have replaced the cartridge in the tap with no improvement to the flow. I have disconnected the flexi hoses connected to the tap from the hot and cold supply pipes and swapped them over. This allowed hot water to flow as normal but very poor flow from the cold water. Could the problem be a blockage in the flexi hose and if so can this be easily replaced or could there be another cause to this problem.
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Thanks for the reply, does the flexi hose unscrew from the tap as I cannot see how it is connected.
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I would assume it will be ones similar to these -

They should just hand twist and unscrew, if they have been installed correctly. If they've been 'incorrectly' tightened with a tool, then the tap may have to come off.
Before you replace them try removing the slow flow one and run a flexible wire BACKWARDS through it in case anything has blocked it.

A bicycle brake cable is ideal but not everyone has something useful like that!


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