Forum Discussion

Pops_R's avatar
Pops_R
Explorer
Jan 04, 2017

Using Automotive Antifreeze in Black Grey Water Drains

Is there any harm in using the Automotive antifreeze in the gray water drains? I understand it is toxic and why why we use RV Antifreeze to winterize, but do not know if there is any concerns to da...
RLS7201's avatar
RLS7201
Explorer II
Jan 05, 2017
GordonThree wrote:
Automotive antifreeze can have propelyne or ethelyne in it, which are also components of many plastics. It's possible to have a reaction between the antifreeze and plastic parts, leading to destruction of those plastic parts.


Interesting thought. I would like to be better informed about ethylene/propylene glycol and plastics. Can you link us to a site that would document the indicated chemistry.

Thanks
Richard

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,209 PostsLatest Activity: Feb 26, 2025