Semi automatic water changing
Hello, finally got the green light to put in holes and/or having tubes running along walls!
I'm wanting to make w/c for my 125 far easier. As in, I turn the knob, it drains, I turn another knob, it refills.
I currently have two sets of cpvc and clear tubing, plus some odd bits, to create hookover drains/refillers. They have knobs to turn flow on or off. I made a fixture that screws onto my faucet for refilling, I use a window to drain. I currently use only one to do both jobs.
I'm wanting to reuse these and place them at the rear on either end of the tank, one up high and the other down low.
I'm curious to know if it's worth it to have one side draining while the other side refills?
I don't believe that I'll be able to get it to work in a way that its always draining X amount while it refills an equal amount of water. The risk of flooding is too great, I've already flooded the livingroom twice and I was there the whole time. Lol.
The pipe is 1/2" and takes forever, it's been nearly 2 hours and its still refilling. I drain roughly 2/3rds, 80gals, at a time. I can add onto the tube to remove more water or use the shorter tube to remove less. The pipe's end automatically stops drainage.
I will not use a float valve for refilling and stopping automatically once full, the risk of flooding is just not worth it, even if it's a tiny chance.
So, I'm wondering how many gallons need to continuously flow in, while tank is draining, to equal a regular 80gal drain and refill. I know its constantly getting diluted, so even the new water will be draining, which means more needs to go in to reach the same levels. And that's what I need help figuring out.
I want to do it this way because then I don't need to unplug heaters and filters. Which I occasionally forget to unplug or to plug back in.
I currently match the water temperature through the faucet. With the system I'm wanting to install, I'll have a split in my output hose and both the hot and cold tap will connect to them with knobs to control how much hot water gets mixed in.
I am on well water and do not need to worry about treating the water.
My koi pond has recently been setup for this type of refilling and draining, except in the extra poor way. I have the garden hose dribbling water in and low end of pond has the liner lowered a gap to let it over flow.
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