nightmare tap that just wont tighten up

[dgee2040]

Hi lads i have a few bathroom monoblock basin taps in my house that seem to be loose i tightened the nuts with box spanners and it still moves and it leaks any water that splashes around the bottom of the tap. the brass nut is as tight as it will get without breaking the sink. all three taps in my house are exactly the same they all have rust around the fixing plate? so im guessing they were never right to begin with. how would i go about fixing this annoying little problem thanks?

 

[rpm]

Botched kitchen tap plumbing in a new build?

Have a look at this thread, some say add silicone others say not!
Ignore the silicone on the tails unless you have the same problem.

 

[Chalked]

Looks like the washer has rusted and become soft.

 

[Best]

Bolt also looks like it is made of steel and rusted.
Perhaps the nut has locked up on the threads before tap can be fully tight.
A new bolt and bracket fixing kit would be best way to solve it.
A lot of the monobloc mixers don't seal well to basins. It causes a lot of debate, but when installing new mixer, sometimes silicone on top of basin and tap properly centred on hole will seal it better. A smear of Vaseline on bolt would also help prevent rust, should any water get on it

 

[dgee2040]

thanks lads i think ill give the silicone a go, it seems to be tight enough but just rotates from side to side maybe it might hold better with some silicone. there doesnt seem to be a washer underneath the tap to stop it rotating. or i might just go buy three new brackets and fix them all. thanks for all your help.

 

[Old Account]

Perhaps, I'd change the whole lot underneath if that's not possible due to rusting, and you cannot get it off , change the tap

 

[Best]

thanks lads i think ill give the silicone a go, it seems to be tight enough but just rotates from side to side maybe it might hold better with some silicone. there doesnt seem to be a washer underneath the tap to stop it rotating. or i might just go buy three new brackets and fix them all. thanks for all your help.

A lot of the monobloc taps just have an O ring or flat washer which just fit into a groove in the tap base, so you wouldn't see a washer, even if one exists.

 

[dgee2040]

A lot of the monobloc taps just have an O ring or flat washer which just fit into a groove in the tap base, so you wouldn't see a washer, even if one exists.[/QUOT

A lot of the monobloc taps just have an O ring or flat washer which just fit into a groove in the tap base, so you wouldn't see a washer, even if one exists.

oh i see, so do those taps leak around the tap base often? my house is a new build im guessing they were never fully tightened to begin with?

 

[Welder]

Its vital when installing a tap that the washer at the base of the tap is perfectly dry. In addition, the basin must be perfectly dry too. I often use a hairdryer! Under NO circumstances use silicone. Why? Because it doesn't go off and will always allow some movement. When water gets to it, it cannot evaporate away so acts as a perm lubricant. Putting them together perfectly dry allows the rubber to grip and seal against the glaze.
HTH

 

[Best]

Its vital when installing a tap that the washer at the base of the tap is perfectly dry. In addition, the basin must be perfectly dry too. I often use a hairdryer! Under NO circumstances use silicone. Why? Because it doesn't go off and will always allow some movement. When water gets to it, it cannot evaporate away so acts as a perm lubricant. Putting them together perfectly dry allows the rubber to grip and seal against the glaze.
HTH

I know what you mean about better to fit the taps as they come supplied, as it will be easier to install new and remove it in the future. But silicone sealant will harden no problem as air can still get to it. Many of the taps will not be a watertight seal onto basins, - some taps have O ring seal barely size of basin hole and some basins have uneven surface where tap meets it.
Silicone Grease is a different thing, and will only be okay if on the bolt thread.