thermostatic tap with an existing mixer ok??

[markp]

Hi ,
does anybody know if a thermostatic tap will function ok if its installed when a existing[inaccessable] mixer is already on the line?? the existing mixer is fed from on one side mains cold and the other side from an unvented cylinder but ive just installed the tap and was wondering if it will work ok?[cant try yet because im waiting for an electrician to wire up the cylinder.and am probobly just panicking as the tap cost a lot [but the wife liked it :) ] and i really didnt want to return it!
Kind thx for any help.

[peter the plumber]

Yes the tap should work ok, it will do its job.

You could have any combination of taps and mixers on the same hot and cold feeds.

But next time don't be so lazzy. Take the old one off.

Its not that hard with the right tools.

We have to do it all the time.