Just saw this on one of my favorite DIY sites:
http://hackaday.com/2014/09/16/a-3d-printed-peristaltic-pump/
This was done as a proof of concept. If you know someone with a 3d printer, and can build a control system, this could be the least expensive way yet to get into automated chemical dispensing for your pool.
http://hackaday.com/2014/09/16/a-3d-printed-peristaltic-pump/
This was done as a proof of concept. If you know someone with a 3d printer, and can build a control system, this could be the least expensive way yet to get into automated chemical dispensing for your pool.