Chris McMahon
03-28-2004, 12:23 AM
Here's a design I've made for a trickle filter / sump / automatic water changer.
My tank is a 5x2x2 (470 litres / 122 gallons) that I'm setting up as a planted discus tank.
http://users.bigpond.net.au/darkcity/sump.jpg
It will be set up to change around 10% (48 litres) per day, but can be increased just by using a larger dripper (20% with 4l/hr etc).
So long as the pump capacity at 1.2 meters head is less than the return 25mm hose's gravity feed capacity (2500l/hr?), the main tank's level should remain constant. The 25mm waste bulkhead in the sump should also limit the water height in the sump to around 16-17cm, even in a power outage.
I'll be running a in-line 5 micron water filter on the inlet water dripper which should take care of the chlorine (no chloramine here).
I'll need to watch my GH and KH levels. With a PH of 6.5, 36ppm KH should give ~19PPM CO2.
My PH should be taken care of by my automatic CO2 PH controller controlling a Co2 tank with reactor (installed after the return sump pump).
Thoughts? Feedback? Am I missing anything?
My tank is a 5x2x2 (470 litres / 122 gallons) that I'm setting up as a planted discus tank.
http://users.bigpond.net.au/darkcity/sump.jpg
It will be set up to change around 10% (48 litres) per day, but can be increased just by using a larger dripper (20% with 4l/hr etc).
So long as the pump capacity at 1.2 meters head is less than the return 25mm hose's gravity feed capacity (2500l/hr?), the main tank's level should remain constant. The 25mm waste bulkhead in the sump should also limit the water height in the sump to around 16-17cm, even in a power outage.
I'll be running a in-line 5 micron water filter on the inlet water dripper which should take care of the chlorine (no chloramine here).
I'll need to watch my GH and KH levels. With a PH of 6.5, 36ppm KH should give ~19PPM CO2.
My PH should be taken care of by my automatic CO2 PH controller controlling a Co2 tank with reactor (installed after the return sump pump).
Thoughts? Feedback? Am I missing anything?