Wookii
Member
@Nigel95 I didn’t know whether to post this in your EW-604 thread or here, but posted it here as its in the CO2 section and more active.
I use a 20” filter housing as a CO2 reactor - it works very well, was easy to build, and is largely maintenance free.
I basically bought a length of clear acrylic tube, cut it to length to fit precisely inside the filter housing, and over the internal spigot of the filter housing head:
Cut some large exit holes in the base:
Took the filter housing lid and added some rubber washers to build it up to avoid the void at the top which could collect CO2:
Then added some PTFE tape around the base and pressure fit the acrylic tube:
The filter housing lid had 3/4” BSP inlets so I used 3/4” to 22mm elbows to maximise flow - and could just about manage to get 16/22 tubing over them:
I use the filter housing in reverse, so water enters though the centre, goes down the tube and the back up the outside and out. I just use a JBL ProFlora inline ahead of the reactor as I already had it, but it would probably work just as well running the CO2 direct into the inlet tubing.
I only get the finest micro-bubbles in the tank with this, and could probably eliminate those if I wanted by adding some coarse sponge to the bottom of the Perspex tube.
I use a 20” filter housing as a CO2 reactor - it works very well, was easy to build, and is largely maintenance free.
I basically bought a length of clear acrylic tube, cut it to length to fit precisely inside the filter housing, and over the internal spigot of the filter housing head:
Cut some large exit holes in the base:
Took the filter housing lid and added some rubber washers to build it up to avoid the void at the top which could collect CO2:
Then added some PTFE tape around the base and pressure fit the acrylic tube:
The filter housing lid had 3/4” BSP inlets so I used 3/4” to 22mm elbows to maximise flow - and could just about manage to get 16/22 tubing over them:
I use the filter housing in reverse, so water enters though the centre, goes down the tube and the back up the outside and out. I just use a JBL ProFlora inline ahead of the reactor as I already had it, but it would probably work just as well running the CO2 direct into the inlet tubing.
I only get the finest micro-bubbles in the tank with this, and could probably eliminate those if I wanted by adding some coarse sponge to the bottom of the Perspex tube.