BRS Biopellet reactor slow flow - Can you mod it?

Adam Baggett

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OK I have a BRS Biopellet Reactor and I am having issues with the flow through it. It is driven by a small sump pump (Not sure on the gallon per hour but it is not a powerhead) and the pellets do not seem to tumble like I would like them. I know with biopellets you are supposed to keep them tumbling all the time or they are not really doing much.

Is there a way to mod the reactor to allow for more flow?

http://www.bulkreefsupply.com/brs-biopellet-reactor.html
 
What size pump (GPH)?
What kind of pellets (if using AIO they are heavier and require more GPH)?
Have you checked that the o'ring is seated correctly and not allow bypass flow?
Check the outlet under the reactor cap, sometime they have casting material left behind inhibiting/restricting flow (razor blade it out).

NOT MY MOD posting to share it only.

When I got BioPellets with a reactor from BRS, I could never get it right. I was using MaxiJet Utility pump 1100 (294gph), they say it should be enough but over night, there was no tumbling at all!! and it was not even a cup of pellets!!! Then I saw this mod by Sacul1573 and got inspired, decided to mod my reactor. Thanks Sacul, you the man!!!!

By doing this, the canister can hold much more pellets since I dont use the inner container any more and less likely to lose flow due to the clog.

Here is the quick 30 sec vid. of being leak tested.
It's holding a cup (~240ml?) of pellets.



Ok, I try to document this with pics as much as I can.

This is what you need:
DSC_7642.jpg

From left
- PVC mesh disk ($0.79 at Micheal's)
- PVC 3/4 about 10" (2 feet @ $1.50 at Home depot)
- Funnel ($1 at Walmart)
- PVC 3/4 Cap ($0.36 at HD)
- O ring (had to buy 10 only need one $2.50)
- zip ties (you have them, no?)
and other tools and a power drill.

First of all, you are gonna have to heat up the tip of the 3/4" PVC pipe. The reactor diameter is not standard, you have to squeeze it in. Just carefully use the torch until the tip becomes soft and push/squeeze over the inlet inside of the reactor lid.
DSC_7644.jpg

It heats up faster than you think. I used the camping stove we have.

Make a donut out of the mesh disc. Outer diameter is about 3.5" and the inner dia. is a tad less than 1".
DSC_7643.jpg


And this. Used some zipties so the mesh stays in place.
DSC_7650.jpg


Cut and trim the funnel so it would fit inside of the reactor. Like this:
DSC_7646.jpg

Cut it bigger first and trim it little by little so it fits nice and snugly.
DSC_7648.jpg


Drill a bunch of outlet holes including the very bottom of the 3/4" cap. Make sure the holes are BIGGER than the pellets, so they won't clog the water outlet. Place an O ring in the lid, fill up the canister with the pellets, put he lid and you're good to go!
DSC_7649.jpg



I didnt use any glue or pvc cement so whenever I have to, I can take it apart completely.

Oh almost forgot the most important thing!! You have to connect the 1/2" hose opposite way since the water flow is REVERSED! Connect the pump on the "OUT" side and the water comes out from the "IN" side.

It is so efficient, you wont need 300gph to run this modded reactor :)

Enjoy!
 
Last edited:
Thank you for the post. I am not sure on the pump GPH, it is an old sump pump that used to power my old tank. I am planning on changing it for a DC pump soon.
The Biopellets are simply BRS Biopellets http://www.bulkreefsupply.com/brs-bulk-biopellets.html

I will check the seals and rings thank you and thanks for re posting the mod
You're welcome!

I saw this MOD a few yrs back, I have a spare BRS unit and started to copy this mod last night just to see how it works out.
 
You really need to know what pump you are using. It simply might be using the correct size pump, with no mods needed. BRS website has two recommendations for this unit. I'd be looking at the pump first before considering a mod.
 
Hey 143MPCo, do you where you got this mod from. Is there a URL? Thanks

RedfishBluefish I will check but it is an old sump pump not a powerhead
 
I am going to mod the reactor this coming weekend. Had a sick kiddo last weekend so plans were put on hold. I will post again once I am done.
 
Nice mod!
BRS BP reactors are famous for clogging. Keep screen clear.
 

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