[Jts140]

I have a 2014 3625RE, have had problems with front gray tank and black tank since new. Never could get valves to close all the way or open. Now gray seems stuck open and black is stuck closed. Any one know where to order these from and has any information how to replace them. Haven't taken apart yet. Still trying to figure out how to empty black.

These look a little different than I see on you tube. The cable sliding mechanism seems a lot larger than I am seeing on you tube. Thanks ahead.

Want to do it myself because our dealers around here in SW Florida are extremely backed up and don't want any additional problems.