Perstaltic Pump (Back siphon fix)
Description
Nothing much here, just widened the impellor and added material for strength. The lid was modified to accept the larger impellor. I found I was getting back siphon when the pump wasn't running using 4mm OD and 3mm ID Silicone tubing. Absolute no flow now unless while running with this fix. Please use real bearings for this mod. Its a extremely tight fit so if you were to say print your own bearings like I did to test it, the hose gets nudged little by little unless you hold it in place. So real bearings recommended.
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