Leak behind washbasin - Warwick Duo

[motorwaycafe]

I have a leak behind the washbasin in my 2015 Warwick Duo.
Does any reader know how to gain access behind the basen to effect a remedy?
Thank you.
Motorwaycafe

 

[runnach]

If you have drawers below sink, you will have to remove them for access. A pic would help?

 

[motorwaycafe]

Thank you for your reply.
The washbasin is a fold-down above the toilet.

 

[AllanD]

The washbasin should lift out. I can't remember exactly how but try opening it at about 45% and then gently move it forward. The basin hinges on 2 lugs which at a certain angle enable it to be removed from a grooved track on either side. You will then see the trough that waste water tips into when you close the sink up. There will be a standard plug hole in the bottom of the trough which will likely need a clean if it hasn't been done for some time.

 

[Fazerloz]

More than likely a leak on the drain hose. You will have to remove the full sink unit to get at it. Remove the bowl as stated above remove all the plastic screw caps and screws and carefully cut around the silicone bead around sink unit and it should then lift out giving you access to the pipes, tap, drain pipes and your shower valve.

 

[motorwaycafe]

thank you for your replies.
I have discovered today that the leak may be coming via the toilet skylight and running behind the washbasen panel.
I did a full drain down last Saturday but found evidence of the leak this morning following heavy rain last night.
So it is a roof inspection tomorrow.
Fingered crossed I may find it.
Thanks again to all.