PHLASK Ecosystem


Expand accessibility to water and reduce waste associated with distribution.

Creating a culture of PHLASKing

Paying for single-use bottled water is a costly, inefficient and energy-intensive model of distributing water to people. In general, single-use bottled water requires 11-31 times the amount of energy asĀ using municipal tap systems (Dettore 1). Unfortunately, public drinking fountains are not always readily available, and can be even more difficult to locate. In spite of the costs and energy requirements, the pervasive sale of single-use bottled water appears to be the most convenient solution.

Our vast public infrastructure for water provides ubiquitous points-of-contact for accessing water, yet nearly all of the taps are siphoned off for private use, rendering access to that water to the discretion of the proprietor.

It would seem that a costless solution to the inefficient, wasteful system of single-use bottled water would be to simply liberate private taps by asking proprietors to share water with the public.



1. asking a kind Philadelphia proprietor to share access to their tap so you can get some #wooder


PHLASKing is simple. Search the PHLASK Map for the nearest accessible tap, and go fill up your vessel.

Public Tap

Fill up and enjoy the benefits of our taxes serving our basic human needs!

Private Tap

Simply be respectful and follow the proprietor's norms for PHLASKing for water.

Is it too much to PHLASK for?

Private taps are affixed in a variety of locations, and can incur varying degrees of intrusion upon the proprietor to share. While respecting the relative inconvenience of providing access, we have faith that proprietors who ideologically agree with the mission would be willing to sustain the minor inconvenience for the greater good of sharing water and reducing waste.

The Philadelphia Water Department charges half a cent per gallon; the cost of filling up a typical 16 fl oz. water bottle, or PHLASK Bottle, is only 1/14 of a cent.