When I picked up my 8285WS in 6" snow & 21°, the decals removed themselves on the way back to Florida from OHIO. I had all the decals duplicated into engraved plastic plates to the tune of $81.00. Using double back tape, all are now labeled in place.
The two dump valve handles up front are, left (small) is the shower gray dump, the right one is (large) the black tank. I purchased a clear 45° elbow along with a 6"-8" clear extension that connects to the common outlet. Now I can see when the "BROWN GOLD FISH" stop flowing, the tank is clear after flushing with the flush hose.
Google "Rhino-Flex" on Amazon for the Rhino flex "Y" connection, also you will need to purchase extra fittings to connect to the 5' extension for the
"Y" hook up to go from the "Y" to the park sewer connection. I leave the kitchen gray tank open when the "Y" is used to connect both gray tanks together.
Today, I will investigate a "REMOTE" pull cable for the kitchen gray tank so I can open and close the valve without having to crawl underneath the 8285WS. I do believe I have seen the remote cables at "NORTHERN TOOLS". If I am right, I will do a follow up.