BeanAnimal
Premium Member
DIY "Drews Doser" Peristaltic Dosing pump
- Thread starter killab443
- Start date
FiReC
Member
Thanks for the info, here is my build
The Parts
Removing the pump head
Testing the fit - that radio shack box listed by the OP is a perfect fit. Note those little clips on the sides of the pump, I believe you can easily swap motors available from apt .. which means if instead of dosing I want to do top off with a higher flow rate, no problem! The little ac motors are cheaper than a whole unit. If it ever burns out for whatever reason, swapping in a new one should be easy.
This is the mounting plate the peri pump comes with. I clamped it to the front panel and used it as a template to drill all the holes with a 5/64 bit initially to go through the mounting plate hole, than I used a 9/64 from the front to make it big enough for the screw to fit through.
Ok this I thought was pretty cool, the holes on the mounting plate are tapped m3x.5 which happens to be the size of those little computer case screws I have laying around everywhere from building computers. Its the one with the tighter thread in my hand.. the ones used to secure a cdrom to a mounting rails, or motherboard to case. NOT the screws used to secure pci cards to the case which is the thicker thread screw in my hand. You need 2 of the tighter thread screws per pump.
Motors mounted to the plate
Wire it up
Before putting the heads back on
The Parts
Removing the pump head
Testing the fit - that radio shack box listed by the OP is a perfect fit. Note those little clips on the sides of the pump, I believe you can easily swap motors available from apt .. which means if instead of dosing I want to do top off with a higher flow rate, no problem! The little ac motors are cheaper than a whole unit. If it ever burns out for whatever reason, swapping in a new one should be easy.
This is the mounting plate the peri pump comes with. I clamped it to the front panel and used it as a template to drill all the holes with a 5/64 bit initially to go through the mounting plate hole, than I used a 9/64 from the front to make it big enough for the screw to fit through.
Ok this I thought was pretty cool, the holes on the mounting plate are tapped m3x.5 which happens to be the size of those little computer case screws I have laying around everywhere from building computers. Its the one with the tighter thread in my hand.. the ones used to secure a cdrom to a mounting rails, or motherboard to case. NOT the screws used to secure pci cards to the case which is the thicker thread screw in my hand. You need 2 of the tighter thread screws per pump.
Motors mounted to the plate
Wire it up
Before putting the heads back on
FiReC
Member
Putting the heads back on , there are really only a couple parts
Note the little holes near the base of the clear plastic housing on the project box face plate, there are knobs on the base of the clear housing that sink into the holes and make the housing completely flush against the face plate. Thankfully there are holes in the mounting plate for all this stuff, just punch a 5/64 bit thru like I said before.
rock on
Note the little holes near the base of the clear plastic housing on the project box face plate, there are knobs on the base of the clear housing that sink into the holes and make the housing completely flush against the face plate. Thankfully there are holes in the mounting plate for all this stuff, just punch a 5/64 bit thru like I said before.
rock on
Last edited:
Nice info. I have a set of Drews and saw the APT lablel. I went to the sight to check it out, but already had them at that point. FYI, here is another source for the "Drews" APT pumps:
http://www.tbaquatics.com/shop/smart-reef-doser-390.html
http://www.tbaquatics.com/shop/smart-reef-doser-390.html
FiReC
Member
same size you did 8 RPM, 3 MM id for 1.5 mL/min
Constantne
In Memoriam
I had to use mine on the relay outlets on my reefkeeper 2 to get them to work. Any other outlet and it didnt draw enough power either.
I ordered the pump I talked about on that post http://www.reefcentral.com/forums/showthread.php?p=16853084&posted=1#post16853084
and it's working great now I'm wating for 2 more pumps to arrive to complete my dosing projects I'll show you the photos when I'll finish.
my total cost for 3 pumps will be 170$ for 3 pumps unit.
(the controller is my Neptune AC3 and the electonic parts I already had at home)
and it's working great now I'm wating for 2 more pumps to arrive to complete my dosing projects I'll show you the photos when I'll finish.
my total cost for 3 pumps will be 170$ for 3 pumps unit.
(the controller is my Neptune AC3 and the electonic parts I already had at home)
ROLLINS240Z
New member
What rate pump would you guys use for automatic water changes? I have a 60g cube and was hoping to change a little over 1 gallon per day. I was thinking of a pump around 30-60ml per minute. I know the APT pumps are not designed to operate full time, otherwise a slow continuous water change is ideal. Two pumps are necessary to achieve this, unless it is possible to stack two heads on a single motor. Ryan
caribbeanguy
Member
Made mine also but has any one used these on the reefkeeper 2? I have them on the Channel 2, 3, 6 and 7 but they do not always come on when they are supposed to and the relay outlets are already taken up........
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