(a) Upon the passage of the ordinance levying the assessment of the consolidated district, it shall be the duty of the board of improvement of the separate water district and the duty of the board of improvement of the separate light district in the city to execute and deliver proper conveyances of all property owned by them respectively to the consolidated district.
(b) These conveyances shall recite on their face that they are made subject to any valid incumbrance on the property conveyed and that the consideration for the conveyance is the obligation and agreement of the consolidated district to pay all valid debts of the conveying districts.
(c) These instruments shall be acknowledged and recorded.