Does washing a rope remove the dry treatment?

My assumption is that a more rigorous wash would remove it, but I figured I'd see if anyone here has a solid answer as I haven't washed too many ropes. I did a test machine wash with a core shot dry treated rope to see if it made it clean enough to consider doing with an active rope. Seems like it did a nice job cleaning it, but now it has me wondering if I'd be better off cleaning my active one by hand to preserve the treatment.

I would recommend asking the manufacture of the rope.  If you are just using water it should not remove it.  The recommendations is to use a very mild detergent like Woolite if you want to use soap.  I just use a rope brush and pull the rope through it.

The dry treatment doesn’t last forever whether you wash it or not. The rope running over rock is way more abrasive than your washing machine. If it’s dirty enough to annoy you, go ahead and wash it. 

Yes, washing will at the very least remove some of the treatment but I have found dry treatment doesn’t last that long.  After a season of cragging it’s pretty much gone anyway.  

My first “dry treated” rope I bought around 1983 was literally just sprayed with some kind of wax, you could run your fingernail along the rope and scrape it off it was so thick.   It didn’t last long either and as you would imagine attracted dirt like crazy.  

lol. Does doing something remove the protection from doing that thing?

Thanks for the perspectives. I know the treatments don't last forever and stop working with regular use, this rope just isn't at that natural point yet so I was hoping to not accelerate that too much. Didn't know if scrubbing it or machine washing it would remove any treatment beneath the sheath that rock abrasion and gentle rain or running over ice doesn't get to.

I can’t imagine a gentle cycle in the washing machine would do anything sub-sheath other than get it wet, but I am not a laundry scientist 

Dry treatments are kind of bogus, anyway. Just enjoy it for as long as it lasts.

Yes it does.

If you really need a dry treated rope then only use that rope when the treatment is needed. Ice climbing for example.

Have a cheap everyday rope for everything else.

Don’t fall into the trap of trying to keep your ropes forever. They are meant to be used, to whip on, to have fun with. Shop around and buy cheap, get an Expert Voice sub, and get them 40% off. Then enjoy them, and the enjoyment they bring you and your friends. Wash them if/when you feel like it, but try not to worry about keeping it pristine, it defeats the purpose. 

In 40 plus years of climbing I don't ever recall washing a single rope.   The most I have ever done is run it through a damp rag.