In a bid to encourage me to water change more often Im going to attempt to build an auto water changer setup.
I've done a little research and keep coming back to the reefloat system. However, there seems to be come confusion (myself included) on how it works.
As i understand its a dilution system, but I dont really want that. I want to be able to replicate how I change water today, i.e dirty water out, clean water in, without mixing the 2.
I have absolutely no doubt that the dilution systems work great, they're just not for me.
Im gonna build a setup that has 2 10litre jerry cans (I only have a 94l tank so 10% water change) with a 12V DC pump attached to each. One jerry can for clean saltwater, one to discard the dirty. The inlet for the dirty pump will pull directly from the tank, with the outlet draining into the dirty can. Simultaneously the inlet from the clean pump will pull from the clean tank and the outlet will feed back to the tank.
A couple of flow valves will control the flowrate.
Something like the diagram attached.
Ill build the jerrycans into a nice wheeled unit so the pumps can be fixed in place and pipework neatly routed and hung up when no in use. I can then wheel it out to mix my saltwater and get it out of the way when not in use. I was planning on running both pumps from a single socket using an hourly timer, so they'll run for a set amount of time that is less than the time it takes to drain the clean can (dont want the pumps running dry!) I can control this from the flow valves too so its a nice gradual water change and so the flowrates of both pumps fill/drain at the same rate.
Parts are coming in at around £50 (without the unit, but I have loads of nice plywood I can make this out of).
What do you guys reckon?