Recently purchased our first pop up...1999 Heritage Laurel. Anybody know what size the drain for the shower holding tank is? I think there is a flanged adapter that reduces to a 3/4 hose thread.
Can't say the holding tank size for sure, but the drain adapter is a must have. Found out when we recently purchased used High Wall. Holding tank is only for the shower and not for the sink. After an adapter (as you mentioned), a blue tank, and a scrap of hose we are all fixed up. Hope you enjoy your new Pop up.