New dump valves "hang low"
Ok, 62 tradewind. I will make this a clear as possible.
Rear black tank, No gray tank. Just two, two inch drains coming from shower and kitchen. Removed old white valve. Had to fiberglass new flange to bottom of good black water tank. So now you have Old tank, New valterra valve. Used 90 degree angle and two draind lines into rear of 90. then twist on cap! (Clear as mud?) The valve will drag and rub the 90 and cap.
The old white valve had two lines coming in either side, just above main valve. do they still make that style?