tetraodon Posted August 2, 2015 Share Posted August 2, 2015 im new to dosing pumps and was wondering if it was normal to have air in the dosing pump lines. Link to comment
HarryPotter Posted August 2, 2015 Share Posted August 2, 2015 No. Bad. Air=no liquid=less dosed=parameter drop Link to comment
tetraodon Posted August 2, 2015 Author Share Posted August 2, 2015 No. Bad. Air=no liquid=less dosed=parameter drop thats what i thought, do the out put ends need to be under water? Link to comment
HarryPotter Posted August 2, 2015 Share Posted August 2, 2015 thats what i thought, do the out put ends need to be under water? No. Sounds like you are losing suction. What dosing pump is this? You can probably add a check valve if it keeps backfilling Link to comment
tetraodon Posted August 2, 2015 Author Share Posted August 2, 2015 No. Sounds like you are losing suction. What dosing pump is this? You can probably add a check valve if it keeps backfilling jebao, and is there a specific valve or just a regular air check valve Link to comment
HarryPotter Posted August 2, 2015 Share Posted August 2, 2015 jebao, and is there a specific valve or just a regular air check valve You are priming it to start off, right? So there's no air? I have a Jebao and had the same issue. Check valves on the outputs (right before into tank) worked perfectly Yes, regular check valves (air line) Link to comment
basser1 Posted August 2, 2015 Share Posted August 2, 2015 According to the Jebao instructions, you're supposed to run water through the lines until all air bubbles are gone. You do this before you calibrate the doser. Link to comment
tetraodon Posted August 3, 2015 Author Share Posted August 3, 2015 According to the Jebao instructions, you're supposed to run water through the lines until all air bubbles are gone. You do this before you calibrate the doser. yes i followed the instructions exactly save for using water to calibrate, i used what was going to be doesed. Link to comment
HarryPotter Posted August 3, 2015 Share Posted August 3, 2015 yes i followed the instructions exactly save for using water to calibrate, i used what was going to be doesed. Then yeah its just the Jebao pumps can't hold suction.... So get some check valves. Then it can't go backwards Link to comment
basser1 Posted August 3, 2015 Share Posted August 3, 2015 Then yeah its just the Jebao pumps can't hold suction.... So get some check valves. Then it can't go backwards x2..... This worked for me too. Link to comment
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