(1) A third party who files an appearance shall serve a defence to the statement of claim indorsed on the third party notice within 30 days after filing the appearance.
(2) The third party may serve a defence to the statement of claim of the plaintiff by which the third party disputes the liability to the plaintiff of the defendant by whom the third party was joined on any ground not raised by that defendant in the defendant's defence.
(3) Rules 14.05 to 14.10 apply, with any necessary modification, as if the claim by third party notice were a proceeding commenced by writ.
(4) Where a third party files an appearance, the defendant by whom the third party was joined shall serve on the third party a copy of any pleading that may from time to time thereafter be served between the plaintiff and that defendant.