水草情迷

大家好：我想DIY二氧化碳供應如圖，不知二氧化碳是否會有效地將溶化。 我用U 形管是因為我相信二氧化碳氣泡向上升但水流方向將氣泡向下推，在這樣的對衝情況下將給更多時間使氣泡溶入水中。 而我認為弱水流會比強水流更有效，如果可以控制到Ｄ氣泡在U 形管前端上上落落就應該無問題。不知各高手認為這個設計如何。

不如加在入水口啦

There are high pressure in the water tube as water getting out of the filter; water may get into your CO2 tube or there will be not much CO2 released.

In fact, you may just simply put your CO2 diffuser under the water outlet and CO2 bubbles will flow with the water current in the tank.

我有考慮在入水口，但我覺得Ｄ二氧化碳會在水草之用之前給更多機會綠藻給收，因為我條入水喉內經常有好多藻生長。況且在過濾器之後, 水比較之前乾淨，也許會有更多二氧化碳溶化入水中。

As mentioned there will be quite a bit of ambient pressure inside the outflow tube...it will be difficult for the co2 to get into the tube.

As for putting the co2 line in the inflow tube...I afraid that the accumulated co2 gas inside the cansister filter will air-lock the filter. Fluval, Rena Filstar, and Ehiem's cansister filters would be air-locked by co2 gas...as far as I know.

Have you consider making a DIY co2 reactor like that one?
http://www.csd.net/~cgadd/aqua/diy_reactor.htm

Btw, I am using that design and the result is pretty good
I have a 66G tank and I can get about 15-25 ppm of co2 by using 3 bottle of 2L DIY co2 + the reactor

This is the result

我不憂慮水壓，因為我有一件零件是有入氣口的，可將空氣順流入水管內, 氣口是一個斜口背向水流, 當水流從後面流過，就會軋引二氧化碳流出， 這零件是屬於化氮器的零件，在化氮器運作時，連氣的氣喉無須氣泵就能抽入空氣，所以我有信心二氧化碳可順利流出。而且我有防倒流防止水回流到二氧化碳氣管。不過個化氮器就已棄置 。（又是那些Ｓａｌｅｓ騙我化氮器可減少個水草缸Ｄ二氧化氮從而少Ｄ綠藻）

You can inject straight into the filter inlet. Adjust the flow rate of the filter so that the CO2 gas stay in the inlet pipe to prevent airlock.

As for GWU design you can add a one way valve in the CO2 line to prevent water from going into the CO2 line. You need to reduce the filter flow rate, if the flow rate is too fast the CO2 bubble will just be push through the U turn.

GWU, 如果測試成功記得回覆呀!
我建議水流量低一點,還有空氣管從水管下方打進去,因為那樣會更容易讓泡泡出來