DIY "Drews Doser" Peristaltic Dosing pump

[niko5]

Received my pumps today very nice quality, much better than my BRS Doser was (it was very old back when they first started with them) anyway here is a picture installed and working woohoo

2 on left are for the 2 part and on the right is for dosing kalk from my reactor.

 

[kurt_n]

I like the addition of the green on/off light above each doser. Did you just wire a plain ol' 120V indicator light into the circuit, or something different? I'm wondering if the addition of that feature bumps up the Wattage of each doser so that they could reliably be controlled by triac outlets?

 

[niko5]

Yep i just wired them in with the pumps. They are 120 v led panel mount lights

 

[DustinB]

Where did you get the lights? I was trying to figure out how I was going to wire in some LEDs.

 

[niko5]

Same place as that triple wide box. West Florida comp.

http://www.westfloridacomponents.co...25V+Round+Panel+Mount+Lamps+971656B03WGN.html

 

[kurt_n]

Thanks for the link. I guess at 1/3 of a W, those aren't really going to push it over the threshold for a triac controlled outlet!

 

[niko5]

Most likely not.... However there's other panel mount lights some are incandescent which would probly draw more wattage... I picked these for the low wattage

 

[reefer50]

just put in my order for two!!! said shipping to california is about 6 bucks us priority mail and about 2-3 days shipping time he recomended this route vs dhl.. ups . the customer service rep said they have to put my pumps together since there are so many different combinations of pump tubing and etc and they should ship out in about 2 days.

 

[DustinB]

Forgot to update. I got my 2 pumps within a week of ordering, shipped ups. I also found the indicator lights at radio shack. Small green AC neon bulbs in a 2-pack.

 

[reefer50]

got them in the mail today only five days total from order date

 

[FiReC]

thanks for that project box link, going to upgrade mine to a triple as well.

 

[suffolk.reef]

My Pumps

My Pumps

Thanks for all the wonderfull information in the post. Though I would chime in with my build. I went ahead and used the LED's as well for the quick visual to tell if the pumps are running or not. All three pumps are being controlled from my Apex. The only issues were actually recieving the pumps. I recieved an email stating the pumps shipped and after a week and a half of no pumps in the mail I called and the pumps still did not ship. It took a total of three weeks to get the pumps. Then I was charged a seperate fee for shipping with no notice or emails, the only way I found out was by balancing my check book. Other that that I love them. Here are a few pics.

 

[killab443]

Nice build. Glad to see this info is still being used! Where did you get your cord grommets? I've been lookin all over for them.

 

[suffolk.reef]

Pumps are installed and running perfect. Thanks again for all the info. I would definately say this thread is active just not a lot of replying to it. Here is a strain relief I found from West Florida Components. All you would have to do is measure the size of you wire to make sure you get the right size. You can probably get something at a local electronics store other than radio shack.

http://www.westfloridacomponents.co..._Code=wfc&Product_Code=HW155PD&Category_Code=

 

[Nomad37]

Cool thread! Just what I was looking for!

 

[Cruzan277]

I know you guys are probably not updating this site but I cant seem to find the website for APT Technolgy.

 

[killab443]

In the original post it has a link to APT . It's actually a link to the product page your looking for.

 

[cediss]

Here's the site:
http://www.aptinstruments.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=AI&Category_Code=P1

For those of you using a controller like the Apex, I have found using Tom Aqua-Lifter Dosing Pump is a much cheaper and effective way to DIY a dosing system. These pumps cost less than $20. I have been running one as an RO pump for 1.5 years and another to dose CaCl for three months without fail or need for maintenance.
The only disadvantage I see at this time is that you will have to measure the output of fluid over one minute then determine your required dosing volume.

 

[Cruzan277]

I have considered using Aqua lifter pump, problem with those is it expands over time so you really have no way of knowing for sure how much your dosing, unless you want to test it every month, I have one on my system for autotop off but thats just water, its connected to a 5 Gallon container so I have no worries with that. Now since the stuff your dosing and wreak havoc on your system if you dose to much expecially ALK I dont mind spending the extra, I just dont have the cash for a $250 + dosing system.

 

[cediss]

Good point! I found I have to test periodically (usually weekly by my choice) because even drew Dosers are not full proof. I've had tubing rupture, hoses clog, and of course system requirements especially on a maturing (young) system change. It's my opinion dangerous to have a set it and forget it mentality