Article 1217

Payment made by one of the solidary debtors extinguishes the obligation. If two or more solidary debtors offer to pay, the creditor may choose which offer to accept.

He who made the payment may claim from his co-debtors only the share which corresponds to each, with the interest for the payment already made. If the payment is made before the debt is due, no interest for the intervening period may be demanded.

When one of the solidary debtors cannot, because of his insolvency, reimburse his share to the debtor paying the obligation, such share shall be borne by all his co-debtors, in proportion to the debt of each. (1145a)