Official: Masterflex Calcium Reactor Setup Thread

[scuzy]

I don't see why you can't but I also thinks the screw in had more strength invade pressure builds up.


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[Joshsmit56001]

I see your logic but you are still connecting a barbed fitting on both scenarios.


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[tkeracer619]

Originally Posted by Joshsmit56001

Could you use these to switch from Ls tubing to 1/4" RO tubing?

https://www.bulkreefsupply.com/mur-l...hose-stem.html

You could this and a coupling. Seems easier than the other connectors that have been mentioned.

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Sure, it would work fine. It's still a two piece connection though. The smooth side on that barb is a push to fit so it would still need to go into a john guest style push to fit connector. In the end it's basically the same.

[tkeracer619]

Originally Posted by Joshsmit56001

Anyone know a place to buy brush's cheap?


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I haven't tried but ace hardware has a large selection. I would try there first.

[tkeracer619]

Originally Posted by LQT

That’s weird... the links seem to be broken. I literally used them a week ago to order new tubing and parts.

L/S 17 equivalent tubing...
https://www.usplastic.com/mobile/cat...x?itemid=25534

Barbed adapter for the quick connect fitting...
https://www.usplastic.com/mobile/cat...x?itemid=36204

Quick connect fitting...
https://www.usplastic.com/mobile/cat...x?itemid=42009

Hose clamps...
https://www.usplastic.com/mobile/cat...x?itemid=34082

Thanks, i just used them last week too. So it must have just been changed...

[Joshsmit56001]

Originally Posted by tkeracer619

Sure, it would work fine. It's still a two piece connection though. The smooth side on that barb is a push to fit so it would still need to go into a john guest style push to fit connector. In the end it's basically the same.

A simple John guest coupling would work fine


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[Joshsmit56001]

Could you change a 100 rpm pump to a 600 rpm by just swapping the gear? I have a pump that is loud that is 600 rpm and I found a cheap new 100 rpm pump to swap with if possible.


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[slief]

Originally Posted by Joshsmit56001

Could you change a 100 rpm pump to a 600 rpm by just swapping the gear? I have a pump that is loud that is 600 rpm and I found a cheap new 100 rpm pump to swap with if possible.


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Brushed motors tend to be loud regardless of their RPM. If you find a 100 rpm pump that is the same (looks the same) as your 600 RPM pump, I am pretty sure you can swap the motor over to the 600 rpm one but unless the bearings are bad in your 600 rpm motor, the noise you are hearing is likely normal and or the result of the gears themselves. As such, swapping the motor over will likely not solve the noise issue.

[Joshsmit56001]

Originally Posted by slief

Brushed motors tend to be loud regardless of their RPM. If you find a 100 rpm pump that is the same (looks the same) as your 600 RPM pump, I am pretty sure you can swap the motor over but unless the bearings are bad in your 600 rpm motor, the noise you are hearing is likely normal and or the result of the gears themselves.

It's a loud hum that is the noise at all RPM's. Would replacing brushes make any difference?


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[tkeracer619]

I asked a CP engineer about swapping between 100 and 600rpm. He said it was more than just gearing and couldn't be converted. I've never opened up a 100rpm model to compare gearsets however if you open up a 600rpm model it doesn't look like there would be enough room to physically fit a gear that would convert a 600rpm drive to a 100rpm drive.

[Joshsmit56001]

Anyone know much about the Cole Parmer Pro-Spense? I can’t really find much info out there such as RPM/brushless/etc


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[tkeracer619]

Originally Posted by Joshsmit56001

Anyone know much about the Cole Parmer Pro-Spense? I can’t really find much info out there such as RPM/brushless/etc


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They're not peristaltic pumps. They use a syringe to dispense small volumes accurately

[awais98]

I was inventorying and I have too many backups that I shouldn’t!!
I just listed couple of brushless pumps on the selling forum.


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[Frank@wall]

programming question within the masterflex pump. I have the 7523-60 and I thought it can dispense 0.6ml/min-3400ml/min but I cannot get it below 30ml. What am I doing wrong?

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[Joshsmit56001]

Originally Posted by Frank@wall

programming question within the masterflex pump. I have the 7523-60 and I thought it can dispense 0.6ml/min-3400ml/min but I cannot get it below 30ml. What am I doing wrong?

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All depends on the tubing you are using. Which tube do you use?



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[Frank@wall]

Originally Posted by Joshsmit56001

All depends on the tubing you are using. Which tube do you use?



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24

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[Frank@wall]

Originally Posted by Frank@wall

24

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My quick loader takes 16, 24, 35, 36. I'm using original masterflex 24 tubing

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[Frank@wall]

24

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[scuzy]

How many rpm drive is that one?


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[Frank@wall]

Originally Posted by scuzy

How many rpm drive is that one?


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10-600 rpm

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[scuzy]

Odd the Cole Parker site lists 24 tubing to be

17ml/min per that doc.


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[Frank@wall]

Originally Posted by scuzy

Odd the Cole Parker site lists 24 tubing to be

17ml/min per that doc.


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Thank you for that info and yes minimum should be 17ml/min. Cannot get it below 30

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[Frank@wall]

I have emailed them. Hopefully I will get an answer.

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[Joshsmit56001]

Doc says 17 at 6 rpm. Lowest he can go is 10 RPM. Could be the difference.


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[slief]

Originally Posted by Frank@wall

Thank you for that info and yes minimum should be 17ml/min. Cannot get it below 30

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Originally Posted by Joshsmit56001

Doc says 17 at 6 rpm. Lowest he can go is 10 RPM. Could be the difference.


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You hit the nail on the head.

His pump is a 10-600 RPM motor, not a 6-600 RPM. That head flows at 2.8 ml per revolution with LS24 tubing. At 10 RPM minimum on his pump, that is 28 ml/min minimum with LS24 tubing on that pump.

LS-15 tubing is 1.5 ml per revolution which would get him down to a minimum of 15 ml/min. Seems a change of tubing is in order if the target flow is below 28 ml/min.