Why do hot water taps stiffen up

[smmjh11]

Is there a reason why the hot water tap stiffens up and the cold tap always seems ok is it normally a worn washer or does it just need lubricating or do they just tend to wear out quicker than a cold water tap. I have cleaned it out in the past but it always goes stiff after a couple of months but it does seem to turn on and off easier during the summer months. Is a replacement best or does it just need cleaning if so what is the best thing to use.

Many thanks

 

[dextrous]

Several factors may apply - one being deposited limescale and another being expansion of metal due to heat.

 

[seco services]

depends on the quality of the taps. maybe wearing aswell that won't help.
use some silicone grease on it when you clean it up.
or just fit new insert.

 

[smmjh11]

Thanks for the replies the tap is still in good condition and when I take it apart it looks fairly free of limescale but I have never put any lubricant on it just cleaned it in the past so will try some silicone grease

 

[neds]

Petroleum Jelly AKA Vaseline does a good job too!