dual head peristaltic pump

Stenner Dual Headed AWC persistaltic pump, 120 gallon per day. Awesome tool if you are looking to set up automatic daily water changes. With the dual headed design on one drive, the intake and output are always balanced, foolproofing the AWC system. Had this set up on my system with my APEX to...

Here is a do-not attempt to DIY o_O I ordered a Dual Head Peristaltic pump off ebay for ~$30 for an Auto Water Change system.. Do a search and I'll bet you can find it. Upon testing the dual head for even rate, I found that they were around 8-10ml/min off from one another. Figured I would let...