Official: Masterflex Calcium Reactor Setup Thread
- Thread starter tkeracer619
- Start date
tkeracer619
New member
The pacific sun is the first reactor i've seen to try and incorporate this method into it from the factory. I haven't really looked into them a whole lot but I think that is where the similarity ends. Their ph control is interesting but I think they overdid it there. If they followed this thread at all in development of that reactor they got lost in ph control. The masteflex is just part of what makes this setup shine.
tkeracer619
New member
Yes and no. There are modular units where the controller goes remote from the drive. There are also constant speed versions that are small but they are noisy and IME I wouldn't run one continuously.
tkeracer619
New member
The little constant speed ones aren't anywhere close to as beefy as the ones we're using. I use them for ATO pumps, they are rock solid. My oldest one was thrown away by another reefer 8 or 9 years ago and I pulled it out of the trash :lol: , it was at least 5 to 6 years old at that point. They are also loud.
The systems we are using for reactors are built like tanks, the little ones are more like old chevy trucks.
The systems we are using for reactors are built like tanks, the little ones are more like old chevy trucks.
soulpatch
New member
While not a masterflex the new ultra precise spectrapure unit is small and rated for should do well. Slief keyed me into it and I have it sitting at home to be installed once I move some other gear and get my CO2 tank filled.
swk
New member
soulpatch
New member
similar to the Pacific Sun model this pump pulses. You set how many pulses in a set time period giving between 6 ml/min or as much as 190 ml/min but it is not the exact same as the constant slow turn in a masterflex.
But yes it is supposed to good for constant on and off and comes with a 5 yr guarentee.
I think Slief said that they were in discussions with GEO to integrate with him but I dont totally recall...
Within the next week or two I should have a write up on it as my calcium reactor should be coming online here shortly...
But yes it is supposed to good for constant on and off and comes with a 5 yr guarentee.
I think Slief said that they were in discussions with GEO to integrate with him but I dont totally recall...
Within the next week or two I should have a write up on it as my calcium reactor should be coming online here shortly...
brandon0350
New member
Would the 7550-20 be a good choice? 10-600rpm
tkeracer619
New member
7550-20 is a digitally controlled brushed unit. It is 1.6 to 100 rpm though. It's not an ideal choice unless noise isn't a concern and on a small tank.
brandon0350
New member
How much of a difference is the noise level between a brushed and a brushless model. And ideally I want a pump that does 6-600rpm? Anything else I should look for? I see a bunch on ebay, but none seem to allow returns and are sold as is. If I receive a broken one are parts easily acquirable?
tkeracer619
New member
Parts are not really easy to get. They may be sold as is but if advertised as working you can send it back if it doesn't. Just read everything carefully. Brushless are silent. Brushed are not, they have a faint buzz and typically squeak a bit.
Hi guys,
I got an 7550-30 with 77200-60 head and using LS17 tubing. The minumum flow should be 28ml/min but I can't get lower than 30ml/min. Is that normal with anyone?
Also when I try to adjust the flow rate, I only can adjust for 10 units (like 30ml/min --> 40ml/min or 50.. 60), anyone know how can I adjust the flow rate by single unit?
Thanks in advance.
I got an 7550-30 with 77200-60 head and using LS17 tubing. The minumum flow should be 28ml/min but I can't get lower than 30ml/min. Is that normal with anyone?
Also when I try to adjust the flow rate, I only can adjust for 10 units (like 30ml/min --> 40ml/min or 50.. 60), anyone know how can I adjust the flow rate by single unit?
Thanks in advance.
tkeracer619
New member
Set it to RPM mode instead of a specific tube size. That should get you finer resolution.
tkeracer619
New member
They function the same but some have reported the III models are not as robust as the II or I. IME they are all perfectly adequate. The thing to make sure is that you get one for precision tubing and not one for performance tubing. You also have to be careful of "long shaft" versions unless you have a specific pump that requires them.
Similar threads
