I have a suggestion for you. I use a "GE SmartWater", water dispenser
in my kitchen. I own six, 5 gallon plastic water jugs that are just like the ones you've seen in office buildings. I fill the jugs at my local store, from a machine that produces Reverse Osmosis Filtered Water.
Three gallon jugs are also available that fit this dispenser and are easier to lift.
The dispenser has nozzles for hot, cold and room temperature water. The hot water is hot enough for tea, the cold water is like ice water and if neither hot nor cold is needed, then room temp water can be dispensed to prevent the machine from having to heat or cool any more.
The dispenser costs about $200 and each 5 gallon empty jug costs about $10.
My town has 4 of the RO machines that I know of. It's 25-35 cents per/gallon to fill your own jugs.
I've used this dispenser now for about 4 years and have had no problems at all with it.
You have to fill it with "one-teaspoon-per/gallon" of bleach water, let it sit for 30 minutes and then run the bleach water out of it. Refill it and again run the water out of it to "purify" it the first time. In four years, I've never had to do that again.
You may want to look into getting one of these and to stop using a faucet mounted add-on device.
Plus, you can stock-pile extra water this way in the event of storms, earthquakes or whatever.
Just a suggestion for you.