Yes you are... and Where are the pictures?
How's it working Awais?
I'm curious: is there additional sump water entering the skimmer pump inlet or is it just the flow from the LaCl reactor?
I'm also curious. Have you gotten your dosing amounts dialed in? If so, what are you using, and how are your PO4 test results?
I'm currently still waiting on my dosing pump/motors in the mail.. from China.. and it's KILLING me on how long it's taking. It's okay, I'm waiting on new PO4 test reagents anyway.
Im also thinking about vodka/vinegar dosing also.
I used to do bipellets for a year, didnt seems lt did not thing at all. My nitrates alwys been 0 likley due to DSB and phos wouldnt go low with biopellets, so thats out.
Once I have the phos stay low like currently...Ill tinker with vodka/vinegar dosing...
good to hear an update. I've been toying with this a bit... but haven't been able to do much serious testing yet. Still waiting on my cheap dosing pumps :mad2: ... so just been playing with a drip setup so far.
Insomniac, I'd like to hear your opinion on my first stage previously posted - as to whether you think the extra water movement is worth the water displacement caused by the extra piping inside? I'm struggling with what's more important: water volume or reaction time. However, with the first stage, I should be able to bump up flow through the reactor a little bit to provide more fresh unreacted water.
Your mention of a new skimmer makes me remember some thoughts I was working through about adding an additional DIY skimmer. I'd like to hear other's thoughts. Typically skimmers you want a certain amount of flow through the skimmer to skim the entire system - and lots of opinions on how inefficient/ineffective these are unless they are certain height, etc, etc..
What about a low flow skimmer (only the flow through the reactor) setup specifically for this purpose of catching any precipitate that makes it through (or if carbon dosing into this reactor exporting bacteria sluff off). It may not be worth it. It may not be necessary as I know some people's opinions seem to be that the filter floss does the job... but if that's the case, why feed directly into a skimmer in the first place anyway. I probalby wouldn't even be thinking about it, but I question the effectiveness of my own skimmer to pull out any extra precipitate with the added flow of the original feed pump to the skimmer.
I like what you did with the first phase, but i do wonder if it will be too much water displacement. PVC is very thick and cumbersome as compared to pre-molded things such as the BRS GFO container. That said, the design looks solid.
You said this is the first stage. What is the second stage?
I just want to note my opinion on dwell and reaction time. I do feel strongly that dwell time is very important. This is why i keep my flow rate pretty slow. That said, I feel that the introduction of turbulence is very important. This will force water and introduced LaCl3 to take unpredictable paths, thus enabling better reaction overall.
The way the holes in your PVC are may help with that. Idealy, i'd try to find a way that you will ensure that the LC reaches the backside of the cylinder as much as the front (where the inlet is).
A recirculating skimmer would be awesome for making sure there is enough dwell time. That's also part of my 2.0 plan.
I have some ideas for 2.0, but I will spare sharing them until implementation![]()
I appreciate your thoughts on dwell/reaction times.
2nd stage is like yours - same instert that goes into a BRS reactor stuffed with Poly-fill sandwiching a couple inches of activated carbon - packed in as tight as I can get it. Currently that feeds the inlet of my skimmer pump.
How would you implement a recirculating skimmer? Initially I thought of putting it as a first stage to increase water volume, but I was concerned that the backpressure from the filterfloss would change over time and create issues keeping any skimmer flow tuned in..
I really like using the 5 micron sediment filter! They are cheap and replacement is a breeze. The issues I found were that due to high PO4 levels, the filter clogged within 3 days.
Thanks Terri Ann, I'd kind of wondered about using a 5 micron sedament filter and how quickly one would clog up. Before - I thought I read you were using a filter sock... which is why I was curious how you implemented it into your design. Are you able to clean the sedament filter, or you just have to replace it? That seems costly in the long run if you can't clean it....
To chime in a bit on the sediment filter thing...I think you should give it a try and see if it works for you. You can get them in bulk for less then 2 bucks a piece (from what i recall). Terri seems to BURN through LC like it's going out of style. Something tells me that Terri LOVES to feed her fish a LOT
You will definitely save money with the filter floss, but you cannot get the "guaranteed" 5 micron size. And if it only cost 2 bucks a month, it may be worth considering!
Although, i'd say that the good part about using filter floss is that you can carbon pack the top. I feel that this is definitely an added benefit!
Try everything. That's my motto!
If nitrates are truly 0 , then the biopellets may have not been able to do thier job - as the bacterial colony need the nitrogen to populate, and in turn pull down the PO4 levels. I assume you'd reach the same limitations with any other carbon dosing, unless you were to dose a nitrogen source too.