Stronger dosing pump

[tthnow]

Can someone recommend a dosing pump that can lift higher than 12"? and not effected by gravity? BRS pump can't pull worth a damn. I am using a Toms aqua but its effected by gravity as well.

[ryeguyy84]

Are you trying to dose small amounts or an ato? My litermeter handles 9 feet without issue for my ato. I bought a used Cole Parmer pump for AWC that can handle almost anything.

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[mcgyvr]

Nope..
Gravity will always be there..

Sounds like your pump head may need adjustment or your tube need replacing or something..
Even my cheap Jebao DP4 pump can easily do 12" without any maintenance for 6+years on it...
Something IS really wrong if the BRS unit can't do 12"..
Tube is worn or pump head needs adjustment/replacement..

Its your pump thats the problem..

Toms aqualifter is not a peristaltic pump its a diaphragm pump that will always perform worse than even the worst of peristaltic pumps..

[ClownNut]

wow, you asking a miracle pump that has anti-gravity built in. lol
kidding aside like mcgyvr said, if brs dosr cant left 12", something is wrong with that pump itself.

[tthnow]

Are you trying to dose small amounts or an ato? My litermeter handles 9 feet without issue for my ato. I bought a used Cole Parmer pump for AWC that can handle almost anything.

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Dosing kalk. I am trying to match my evap and my BRS is bad. Chatted with them and was told they will eventually go bad, as I had it working before.

[hkgar]

Dosing kalk. I am trying to match my evap and my BRS is bad. Chatted with them and was told they will eventually go bad, as I had it working before.

how old is the tubing. It may just be warn out? But, quite likely the line either to or from the pump is clogged wit the kalk.

[nereefpat]

Peristaltic pumps are positive displacement pumps. The are essentially not affected by changes in head pressure, within reason. Something must be wrong.

Did you mean 12 inches or feet? 12" is almost nothing. Any pump should be able to handle that.

[Tripod1404]

Peristaltic pumps are positive displacement pumps. The are essentially not affected by changes in head pressure, within reason. Something must be wrong.

Did you mean 12 inches or feet? 12" is almost nothing. Any pump should be able to handle that.

Yeah I was thinking the same thing. A peristaltic pump basically "pinch" the tubing, so the fluid should not be able to flow back. If the pump and tubing are okay, fluid flowing back would require enough pressure to rotate the pump backwards and that requires ridiculous amounts of fluid, much much more than what you would expect to have in tubing.

Although unlikely, by any chance, do you have ending of your tubing inside the aquarium water. If the aquarium is above the pump, you might causing a back siphon and basically drain the tank to the doing reservoir.

If the issue is not this, the internal tubing or maybe the pump head (the rolling part of the pump) needs to be replaced, since that is the only way fluid can drain back. BRS sells both the components as spare parts for their pump.