Co2 system for large setup (550lt)

[popeye]

Hi all

Doing more research on this and thinking of adding co2 to my current setup but it is large and I do have a sump.
I am not looking to get into this as I know there are other threads out there re the use of co2 with sumps.

So my question is can anyone advise appropriate diffusers for a system of this volume. I will use a very large co2 bottle as I live 15min away from a pub co2 refill station and it will be housed in a dedicated sump cupboard.
My sump is situated on the floor and with the co2 cylinder higher than the outlet I assume I would have no need for a check valve as back syphonage is not possible.

Thanks Popeye

 

[foxfish]

A very easy way would be to feed the gas straight into the return pump, this works well but you will get a visible mist of co2 in the display. One step further would be to use a needle wheel sump pump, you would still get a mist but a very fine mist!
Next up would be a in line reactor, on a tank that size you will need a 20" tall version.

 

[popeye]

thanks for that. Are there any sponsors that sell a suitable reactor?

 

[foxfish]

I don't think so, but DIY is quite easy.
You can copy the design in my sig link but you would need a bigger vessel (20" tall).