Originally Posted by yoopersafari
Thanks for the reply!
If 3 should be the line to the pump and 4 is correct as the fill tube, what would 1 and 2 be used for normally? Or should I just plug them and forget about it? Do I need a drain hole on the bottom or can I just pump out all the water at the end of the season?
Based on the manual and other threads I've looked at, I think the tank it actually original to the the trailer. But I could be wrong.
I don't think any of the hoses are rated for potable water. They all look pretty old. Could be wrong about this as well, though.
3 has a tee, where do both lines go? I assume towards the back of the trailer. Sometimes drain valves/lines are away from the tank. Might as well find out where all the lines go and where valves are situated for future reference.
For now I'd also see where 1 and 2 go and what they're connected to, if anything. That may determine if you should plug or leave as is for now. Once you know where all the lines lead, I'd do a pressure test (preferably with air) to make sure there aren't any leaks.