DIY external reactor using AMDUS water filter

[illumnae]

sorry what's a resun FR?

Robert, do all the AMDUS water filters come with the red plug? and also where do you get the plastic you siliconed to direct water flow from? i notice it's curved at one side, i assume to fit the curvature of the PVC pipe?

I have been unable to find a suitable external CO2 reactor for my setup (Jaqno uses 12mm hoses with no adaptor, NA one is really pricey and ISTA one is reputed to leak, especially since i have to use an adaptor), hence your DIY which is solid and can fit 16mm hoses is very appealing!

[dominik]

sorry what's a resun FR?

Robert, do all the AMDUS water filters come with the red plug? and also where do you get the plastic you siliconed to direct water flow from? i notice it's curved at one side, i assume to fit the curvature of the PVC pipe?

I have been unable to find a suitable external CO2 reactor for my setup (Jaqno uses 12mm hoses with no adaptor, NA one is really pricey and ISTA one is reputed to leak, especially since i have to use an adaptor), hence your DIY which is solid and can fit 16mm hoses is very appealing!

Resun is the brand while FR means Fludisied Reactor. FR is use mostly in marine setup to remove PO4. You can just buy a second hand one that cost below $20(i just sold mine extra FR for $15). Drill a hole to inject CO2, put in some bio balls and there you have it. It could be acheive in less than $20.

[Shadow]

sorry what's a resun FR?

Robert, do all the AMDUS water filters come with the red plug? and also where do you get the plastic you siliconed to direct water flow from? i notice it's curved at one side, i assume to fit the curvature of the PVC pipe?

I have been unable to find a suitable external CO2 reactor for my setup (Jaqno uses 12mm hoses with no adaptor, NA one is really pricey and ISTA one is reputed to leak, especially since i have to use an adaptor), hence your DIY which is solid and can fit 16mm hoses is very appealing!

Yes they all come with the red plug, you just need to unscrew it and replace it with air tube connector. That black plastic thing is from unuse plastic cover . I just cut it to fit.

[illumnae]

haha ok thanks! i pmed the guy selling AMDUS water filters on AF, hopefully he'll reply soon.

[ongtw]

sorry guys,

where can i get all these items?

[illumnae]

i just called the guy who sells the water filters, total cost for filter housing + 2 connectors is $27, slight price increase from when robert bought his. i'll possibly work on it this weekend to destress from work even though i don't need it now

[Shadow]

$3 increase but it should still be cheaper than buying from those normal shop

[illumnae]

yup i'll be making the purchase for 2 units soon. thanks for the guide robert!

[Shadow]

your welcome

[illumnae]

just to confirm, i should be using epoxy and not aquarium safe silicone to seal the co2 atomizer?

[Shadow]

You might not want to use the atomizer because it can get block easily. And yes all glued using epoxy. The brand I was using is "Araldite" no issue with the shrimp.

[illumnae]

dont use the atomizer? what should i be using instead?

[Shadow]

I was since replace it with air tube connector.

[illumnae]

would the rate of dissolving of the co2 be affected since it isn't broken up into smaller bubbles?

[Shadow]

ok for my case, but only 3 bps. Maybe try airstone which have bigger pore.

[illumnae]

i've made my order for 2 AMDUS water filters to kickstart this project hope my DIY skills are good enough

[illumnae]

i bought Selleys Knead-it Underwater today, it's safe for contact with drinking water and comes in putty form so it's easier to manipulate...do you think it's suitable? it's something like this, just that in Singapore it's called a different name:

http://www.selleys.com.au/Selleys-Kn...a/default.aspx

robert, can i check with you the length of the PVC please? is it 9 inches (since the tap water filter is 10 inches)? would the clear plastic tubes sold at c328 do or is PVC better?

[Shadow]

you are right 9 inches, not sure about the "selleys" though. I thing PVC is easier to glue, I always having problem with those clear acrylic pipe

[illumnae]

i have gotten the PVC pipes and have already epoxied the airline connector to the airhole. it's really very easy! the airline connector fits very snugly into the hole, so not much fear of leaks...the epoxy is only a "just in case". the way i did it though, there's no way i can fit an atomizer in even if i wanted to...i hope it's good enough

Robert, i need advice on what to use for the water flow director! haha, i can't seem to find any suitable piece of plastic! once i find that i can finish my reactors very fast

[Shadow]

I use left over ice cream container (those 1 or 2 liters one) and cut it to necessary size