The Borosilicate Glass Pitcher of Life has a 3.75 capacity and the holding tank (where the filtered, alkalized water is held, holds 2.5 liters). I tested the prototype for 3 months before we went into production, and it worked fine. I always filled it up again after I poured several glasses of alkaline drinking water. We made some larger versions, but because it is the high quality Borosilicate Glass, the weight for my Wife was a little too much. We modified the final version, that we put into production, by making the glass handle larger, and adding a food-grade, stainless steel underside to the lid.
Healthy Regards
Rick

Alkaline water typically stays alkaline for a period of time, but the length of time can vary depending on various factors such as storage conditions and the initial pH level of the water. Generally, alkaline water that is properly stored in a sealed container will retain its pH level for several weeks to a few months, or longer. About a decade ago, I was in a partnership with Dr. Robert O Young, and we bottled alkaline water in a sealed blue glass bottle. We tested it over a year later, and it was still at 9.2 pH.

However, it is important to note that over time, the pH level of alkaline water may gradually decrease as the water absorbs carbon dioxide from the air, and this is especially true if it is in any type of plastic container.. Therefore, it is recommended to check the pH level of stored alkaline water before consuming it. Your best approach is to generate fresh alkaline water that has antioxidants. Your best approaches to this would be with a Pitcher of Life® alkaline water purifier pitcher. Or you can go with a Life Ionizer which will generate a higher pH and a higher negative Oxygen Reduction Potential (ORP)

Teflon is a brand name for a type of synthetic material called polytetrafluoroethylene (PTFE), which is used in a variety of products, including non-stick cookware, waterproof clothing, and industrial coatings. PTFE is generally considered to be non-toxic, and it is not known to cause any harmful effects when ingested in small amounts. While it is possible that trace amounts of PTFE might be present in drinking water, the levels are likely to be very low and would not pose a risk to human health.

Water molecules are composed of two hydrogen atoms and one oxygen atom, and they are naturally polar, meaning that they have a positive charge on one end and a negative charge on the other. This polarity is what gives water its unique properties and allows it to dissolve a wide range of substances. Some companies claim to sell "polarized" water, often under the brand name Watt-Ahh, but these products are not backed by scientific research and are not likely to have any special health benefits.