Stepper or DC Brushless motor for DYI Continuous feeding pump in calcium reactor?

[Borat]

Honestly, dude - I would buy a ready-made pump if I were you. I don't think you have a clue about it...

 

[Borat]

But if you are one of those genious that persist irrespective - check out my build thread and see if it's for you:

DIY Peristaltic Pump: Cultural Teachings of Glorious Nation of Kazakistan

A warm hello from a friendly nation of Kazakistan to friendly reefers from US&A! In this thread I am going to show a step-by-step guide on how to make a DIY peristaltic pump (similar to Kamoer FX-STP pump). I have already built such pump for my DIY calcium reactor and it's been working hard...

www.reef2reef.com

 

[enb141]

Nice link, good job as well, do you have issues with bubbles building up in your calcium reactor chamber?

 

[Borat]

Nice link, good job as well, do you have issues with bubbles building up in your calcium reactor chamber?

No such issues - but then my calcium reactor is DIY'd too and it's dual chamber with 2 ph probes and solenoid control via DIY controller..

Are bubbles causing you issues (they shouldn't really)? If you use a peristaltic pump, it should just pump out any excess CO2 out of your calcium reactor.. Some may use CO2 recirculation loop - but I opted not to have one...

 

[Borat]

Here's the calcium reactor build thread, if you are interested:

Project CaRx: DIY Calcium Reactor + DIY Controller + DIY Peristaltic Pump + DIY ALK Monitor

Hey folkes, 2 large DIY projects completed this year and now I am sitting idle.. What should I do next? The target for my tank is to slowly grow into an SPS dominant system. I already have 3 palm sized plating easy-going monties and have to dose about 100ml of alkainity solution daily (100mg...

www.ultimatereef.net

 

[enb141]

I'm gonna check that link too because I want to build my DYI Calcium reactor, mine is based on using a water filter housing for the chamber.

Do you use your peristaltic pump to pull water or to push water to the chamber?

Why you opted for not recirculating the CO2?

 

[Borat]

I'm gonna check that link too because I want to build my DYI Calcium reactor, mine is based on using a water filter housing for the chamber.

Do you use your peristaltic pump to pull water or to push water to the chamber?

Why you opted for not recirculating the CO2?

I push water into reactor, I think there is little difference whether pull or push (push creates positive pressure in reactor and pull negative pressure, both positive and negative pressure has the same physical effect)..

I already had a lot of loops and connectors and adding recirculation loop sounded excessive. I decided to add it at a later stage if I it becomes necessary, but to be honest everything is working perfect since day one and I simply don't see a need in recirculation loop. Mind though one thing - it's a dual chamber reactor and any unused CO2 in chamber 1 will end up being used by chamber 2.. so the recirculation loop is less relevant..

 

[Borat]

You will need a recirculation pump.. just to be clear - it's different from CO2 recirculation loop..

 

[enb141]

Yes, I need 1 pump (for recirculating the water inside the calcium reactor) and one pump for sucking or pushing water to the calcium reactor.

But I'm going to use only one chamber, so I'm probably gonna need CO2 recirculation.