Antifreeze, pink or green or blue

[KyDan]

We've been using the "pink stuff" for years.
I've found that it doesn't leave much of an after taste in the RV water system.
Of course we don't put it in the water heater or fresh water tank but I do
pump it thru the entire water lines and faucets.
(We don't have an ice maker or onboard water filter.)

I've found that I can flush it out with fresh and the water will foam when
you turn on a faucet for a couple days. Even then it's OK to brush teeth
or wash with. We typically use drinking and coffee water out of a blue jug
on the first outing of the new season but after that we use a "whole house"
water filter with a charcoal cartridge to fill the fresh tank when we're
boondocking or just put it on the
city water hose connection and we're fine. No noticeable taste after the
first couple days.