Pink antifreeze turned purple

An RV antifreeze freeze test - it actually does freeze but does not expand -

http://roadtrek190popular.blogspot.com/2014/01/rv-antifreeze.html

I doubt there's anything wrong with your antifreeze. I got two gallons at Walmart yesterday. The Prestone brand was pink, the other brand had a definite purple color. The fact that it is frozen is not a problem since it freezes without expanding. Water, on the other hand expands when it freezes and that's what bursts the pipes, pumps, faucets, etc.

Bmach wrote:
You do not need to blow out the lines before pumping in the pink stuff. It will push out the water as it goes through the line.

it wont "push" the water out..it mixes with it. they are both water based therefor they mix....

I dumped the purple stuff.

I don't have the "T" connection yet, so I syphoned out as much
water from the fresh water tank as I could. Put new antifreeze
in. Pumped it thru the water system. I than took a sample from
the outside shower in a clear jar. It was the same color as when
it went in. I think I'm good.

Thanks for all the help.

Regards
Kyte in NW PA

We have a cold snap coming tomorrow night. I don't think I'll bother with the antifreeze. It is going to get down to 50.

There may have been some chemicals in the line (May have, techinically H20 (Water) is a chemical so....) that it reacted with.

Suggestion: how much fun is it to get rid of all that stuff come spring?

Next fall, use compressed air, open all valves, blow the lines out wait, blow again, wait (like 5-10 times, waiting 2-5 minutes between blows) and when you no longer get any evidence of water in the lines, dump (if you have home dump) the waste tanks and pink the traps and toilets.

NOTE: after the FIRST blow open the water pump inlet strainer,(Put a towel under it to catch any water) run the pump for like a minute, then re-assemble the strainer housing.

Then cycle the ice maker to let gravity suck the water out of those lines.

Then do the 2nd blow.

Allworth wrote:
We have a cold snap coming tomorrow night. I don't think I'll bother with the antifreeze. It is going to get down to 50.

That's just plain mean:B

popupcamping wrote:

Bmach wrote:
You do not need to blow out the lines before pumping in the pink stuff. It will push out the water as it goes through the line.

it wont "push" the water out..it mixes with it. they are both water based therefor they mix....

What? The AF will most definitely push the water out. What happens in the spring when de winterizing? The water pushes the AF out. No need to blow the lines out beforehand. -20 her last winter, and I had no issues.