Problem with jebao dosing pump

[Clement Chen]

Not sure if any of you face this. I got 4 containers of liquid all calibrated and all set to same amount. however today i found one bottle completely empty the other 3 have more then half but all different levels. it doesnt seem to dose correctly

[Guest]

Did u try to calibrate again and see?

[Clement Chen]

Not yet. will probably try again tml. but it is very strange how can it drain out the whole dosing container while the rest left so much. if it is slight difference still not that bad

[james72]

Wah...if its kh can crash your tank

Cheers,

James

[Clement Chen]

heng it is the grotech abcm, its the c one and i diluted it with water so wont be that bad

[Hon]

I experience before. My fish street dosing pump dump the whole gallon of TLF part B into my tank in the night. Water turn cloudy, coral almost all died. White deposits all over my tank dump piping skimmer etc.

[surreal1228]

Not sure if any of you face this. I got 4 containers of liquid all calibrated and all set to same amount. however today i found one bottle completely empty the other 3 have more then half but all different levels. it doesnt seem to dose correctly

Bro u may want to test it.out. as each pump head may have different dosage volumn.

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[joby553]

I may sound stupid here, but I put my auto top up higher than the sump area, so after kick in the siphon effect didn't stop the water flowing until drained all rodi water. Maybe yours also happen like that? I'm not really sure though.

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[Guest]

Yes the siphon effect could be very possible as well. That's why I don't use a large container for my dosing liquid.

[RomeoJuliet]

Any other users face similar problem with the Jebao? Cuz I haven't set up mine yet.

Also, for the Grotech ABC or 123, anyone dose directly from the bottle itself?

[Clement Chen]

Hmm i dun think it is really siphon right. cause they r designed against that. I have topped up with normal ro water and see if its still the same problem

[Hon]

Although my dosing pump is a cheap FS pump, I think the build is same as Jebao. My understanding is that one of my pump head (pump 2) got struck in the on position even after off signal is issued, hence the pump run continuously until the next on/off cycle kick in for pump 2. That's about 1 hr interval, enough time to empty my 3/4 fill gallon bottle of TLF Part B. I didn't test more, have the dosing unit changed.