supplement to the coolant

There was some reduction in coolant. There is red antifreeze. Should I add tap water for supplementation or would drinking water be healthier? which one do you recommend?

Drinking water is better, sir. Normally it is necessary to add pure water, but there is not much left to do at work.

Even when making tea from tap water, there is lime on the bottom of the teapot. Yes, you can use it by boiling, but 5 liters of drinking water is 5.50 TL right now. The wiper fluid isn't a big deal. If you are only going to make roads in extremely cold weather, if there is no antifreeze, the water will freeze and the sprinkler will not work. But in the summer, I don't put any antifreeze in the wiper fluid, and there has been no problem in 2 different 207s for 6 years. Cooling water is important in summer and winter.