It was asked of me if the larger sized sleeving to the islands could be reduced from 6” to 4”. I think this needs to be ran past the designer to see what the intent was for the larger sleeve size. I know that the irrigation pipe running to these locations is not real large and a 4” would accommodate it but not sure if anything else is going through the sleeve or not. FYI - Code does not allow water and electrical to be in the same sleeve. Parks Operations Manager Town of Addison Office: 972-450-2863 Fax: 972-450-2834