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Back to the drawing board! Water Changers!
Rick May March 5, 2003

Here’s my plan. I haven't built it yet but it's in the planning stage. I tried to get the best of a "drip" system and a "drain and fill" system.



I'll try to explain why I like this plan. The problem I hear from those who use a drip system is that the water isn't as clear as the normal change and refill systems. I can understand why, the water is always being turned over and doesn't have time to age before being used. My plan is to have an aging reservoir large enough to hold two days worth of water from my input RO/tap-- about 150 gallons. This would be heated and oxygenated. That’s why I thought of using the tank on the right as a mixing tank to add RO and tap, heat it, and hold it.

Now I didn't want to mess with figuring out how to stop the RO and the tap when the aging tank is full so I included an overflow that would drain into the sump. This way if I'm not there to do water changes every day, the system would switch from a drain and fill system into a drip system. My plan is use the red tank to drain water into when I do water changes, and act as an overflow. I don't have a drain close by so I thought a sump pump would be a great way to automatically get rid of the waste water.

So here’s my daily plan for the tanks. I will use a siphon to clean the tanks. The waste water would go into the red tank to be pumped off when it’s full. I’d refill with the manual refill valve under the green tank. If I’m not around to do the draining and refill then when the green tank is full it would start dripping into the sump. I would have the heaters in the sump and in the water supply tank.


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