Replacing / installing outdoor RV shower

Our previous camper had one like the op described. I replaced the entire valve and hose and removed the door and frame to re-seal the door frame with butyl tape. Also caulked where the inner panel and frame overlapped. Our current camper did not come with an outdoor shower, but I recently rigged up one using a couple of fittings on the low point drain to connect a garden hose. I put a sprayer on the end of the hose that has multiple patterns to choose. Worked great on our recent dry camping stay. I bought one of these shower tents several years ago.http://www.amazon.com/gp/aw/d/B00KAFFSNO/ref=mp_s_a_1_2?qid=1462411846&sr=8-2π=SY200_QL40&keywords=shower+tent&dpPl=1&dpID=51HNFZflPFL&ref=plSrch the two room design is nice and roomy. I cut a hole in the side of it at the hieght of the rv shower valve and hose. That camper is gone, but now I use the hole for the garden hose.