used with a single dock structure as seen in fig4 the shape of the frame 1 is not specifically limited and could be for example annular triangular rectangular and may include at least one internal cavity such as in a donut shape because the bottles are screwed into the device should one or more bottles become damaged it they may be replaced without the need for an involved procedure requiring special tools the replacement may preferably be performed by the end user an alternative to the female screw portions is another means to receive containers such as two liter pop bottles such that the attachment is removable secure and provides a good seal such as a clamp or a plug over which the open end of the bottle can be pressed to create a secure structure and fluid tight seal in an alternative embodiment the frame comprises a means to secure containers in place using a locking system in order to prevent potential tampering the locking mechanism is typically in the form of an additional thread 10 provided in the female screw portion 3 in another embodiment the frame comprises a means to secure containers in place so that the containers are not readily removable referring to a system using a frame of the present invention certain bottles may be partially filled or substantially filled with a liquid such as water in order.