RULE 22                                                
                        INTERPLEADER                                             
                                                                                 
    (a) Rule. Persons having claims against the plaintiff may be joined as       
defendants and required to interplead when their claims are such that the        
plaintiff is or may be exposed to double or multiple liability. It is not        
ground for objection to the joinder that the claims of the several               
claimants or the titles on which their claims depend do not have a common        
origin or are not identical but are adverse to and independent of one            
another, or that the plaintiff avers that he is not liable in whole or in        
part to any or all of the claimants. A defendant exposed to similar              
liability may obtain such interpleader by way of cross claim or                  
counterclaim. The provisions of this rule supplement and do not in any way       
limit the joinder of parties permitted under other rules and statutes.           
    (b) Statutes. The remedy herein provided is in addition to and in no         
way supersedes or limits the remedy provided by RCW 4.08.150 to 4.08.180,        
inclusive.