Barker Auto valve openers

[Ford truck guy]

Has anyone installed these- https://www.barkermfg.com/auto-drains.html

Looking to get rid of my 35’ long cable pulls that harsly move….
Ok, Ok, maybe their not 35’ long, but I am pretty sure they make a few twists and turns

[ET156]

I had them in my Alpha gold 5th wheel . they are good. but I would not install them in a place where you do not have easy access. they do require adjustments from time to time.