a sapsucker of some sort had gotten into the trees last year and the dripping sap created quite a mess on one corner of the treehouse deck that was really bumming me out. i tried many things to remove the sap – an orange peel based concoction that claimed to remove everything which it didn’t. mineral spirits. nope. turpentine. nada. ( all of the liquids i would let soak into the sap ). an electric pressure washer ( not sure of PSI but it’s a little wimpy ). nyet.
then a backyard neighbor said i should try his 2,400 PSI gas powered pressure washer. IT WORKS! IT WORKS! IT WORKS!
and as an added bonus is makes the beautiful black locust decking look brand new.