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 damage to drain seals, drain lines using automotive antifreezeWe are full timers and in snow country this year. It has had some colder than normal winter days dropping below zero and resulting it the gray water lines freezing.I only need to pour anti freeze into the gray water drains so just wondering it is safe for the gray water plumbing and such to use the automotive brand over the RV antifreeze

In many jurisdictions it is illegal to dump automotive fluids including anti-freeze in a sewer system. It is not friendly to the environment or the equipment that needs to process the sewage. It's really not a good idea.Jim

I've used the pink RV antifreeze in better than -55F and my water pump has worked fine year after year.Bill

Trackrig wrote:I've used the pink RV antifreeze in better than -55F and my water pump has worked fine year after year.BillBill, he's asking about using it in the holding tanks, not the water system where the water pump is located.Jim

TucsonJim wrote:In many jurisdictions it is illegal to dump automotive fluids including anti-freeze in a sewer system. It is not friendly to the environment or the equipment that needs to process the sewage. It's really not a good idea.JimIllegal a lot (if not most) places, will poison your septic tank or the sewage treatment plant, toxic to fish, birds, pets, and other wildlife.As for pipes, seals, and other components of the waste tank system, it probably won't harm them. It's the rest of the world that will not like it.Don't do it. Use the pink RV antifreeze instead. Period. End of story.

Automotive antifreeze is most likely ok to use in your holding tanks in a diluted 50/50 or less form. It will not harm your tanks,gaskets and so on. BUT draning it it into the sewer system is ILLIGAL,because it is VERY TOXIC. So , Don't do it !!!Siggy

Using Automotive Antifreeze in Black Grey Water Drains

TucsonJim
Explorer II
Jan 04, 2017
In many jurisdictions it is illegal to dump automotive fluids including anti-freeze in a sewer system. It is not friendly to the environment or the equipment that needs to process the sewage. It's really not a good idea.

Jim
Trackrig
Explorer II
Jan 04, 2017
I've used the pink RV antifreeze in better than -55F and my water pump has worked fine year after year.

Bill
TucsonJim
Explorer II
Jan 04, 2017
Trackrig wrote:
I've used the pink RV antifreeze in better than -55F and my water pump has worked fine year after year.

Bill

Bill, he's asking about using it in the holding tanks, not the water system where the water pump is located.

Jim
naturist
Nomad
Jan 04, 2017
TucsonJim wrote:
In many jurisdictions it is illegal to dump automotive fluids including anti-freeze in a sewer system. It is not friendly to the environment or the equipment that needs to process the sewage. It's really not a good idea.

Jim

Illegal a lot (if not most) places, will poison your septic tank or the sewage treatment plant, toxic to fish, birds, pets, and other wildlife.

As for pipes, seals, and other components of the waste tank system, it probably won't harm them. It's the rest of the world that will not like it.

Don't do it. Use the pink RV antifreeze instead. Period. End of story.
siggyd777
Explorer
Jan 04, 2017
Automotive antifreeze is most likely ok to use in your holding tanks in a diluted 50/50 or less form. It will not harm your tanks,gaskets and so on. BUT draning it it into the sewer system is ILLIGAL,because it is
VERY TOXIC. So , Don't do it !!!
Siggy
2oldman
Explorer II
Jan 04, 2017
TucsonJim wrote:
Bill, he's asking about using it in the holding tanks,
I thought he was asking about the drain traps. I guess I don't know what a 'drain line' is.
Dick_B
Explorer
Jan 04, 2017
Walmart or Ace hardware should have the pink stuff.
full_mosey
Explorer
Jan 04, 2017
How/where do you legally/morally discharge the toxic automotive antifreeze?

HTH;
John
doughere
Explorer
Jan 04, 2017
full_mosey wrote:
How/where do you legally/morally discharge the toxic automotive antifreeze?

HTH;
John

I take it to my local county recycling center.

Doug
lanerd
Explorer II
Jan 04, 2017
2oldman wrote:
TucsonJim wrote:
Bill, he's asking about using it in the holding tanks,
I thought he was asking about the drain traps. I guess I don't know what a 'drain line' is.

OP wrote:
only need to pour anti freeze into the gray water drains so just wondering it is safe for the gray water plumbing and such to use the automotive brand over the RV antifreeze

Sounds to me he's asking about drains specifically! I don't think he said anything about holding tanks.

Ron