hi crunchy frog thanx 4 warm welcome to the site. ive read all the threads b4 i signed up.sorry bowt yer chicago going to its deep grave[&o] i dread that so hoping to resist the temptation to send mine to deep out of the holiday pool in menorca.took the dogs along our local canal 2day.mite try there 1st attempt as not to deep 2get in if anything untoward does happen..gonna do the sealant mod 1st tho.was it a lake u lost yours in?