When MayMay bought this at a consignment sale for all future grandkids....it seemed so simple to wash the seat and reinstall it. Not so. She and Peeps spent many hours trying to work a solution for re-installing the seat. Then Peeps had an AH-HA moment and then MayMay put it back on with his careful directions. Here is Grayson - Avery outgrew it before the installation was complete. Grayson loved it so much she asked to take it back to Percy and of course the answer was sure honey !! She seems to love it. As Peeps says 'If it's not fun, it won't get done'