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Thread: Using Old Swimming Pool water to flush toilets

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    Ocean Railroader's Avatar
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    Using Old Swimming Pool water to flush toilets

    This is another one of my threads to address the droughts in the Western States. This idea is that it might be possible to set up a feeder line from a swimming pool's filter pump and have it supply water to a toilet to reuse the water. The fresh water that would normally go to the toilet would go to the swimming pool first and then the toilet. The idea behind this is that the pool would get some water replaced every time the toilet flushes vs having to empty out the pool to change the water in it and let the toilet waste new drinking water.

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    Re: Using Old Swimming Pool water to flush toilets

    You would have to have a very good back flow preventer. If pool water went into drinking water you would have problems. Also do you have a septic? If you do are the pool chemicals going to mess that up? I made a setup that used gray water from the shower to fill a tank that pumped into the toilet. It worked good but the wife did not like it so I did away with it. Good luck

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    Ocean Railroader's Avatar
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    Re: Using Old Swimming Pool water to flush toilets

    I'm currently working on a idea that would use old fish tank water from a 500 gallon goldfish tank and send it though a system of gravel filters to have it enter a toilet. The toilet would be sealed off from the house water system by getting all of it's water from the fish tank. But the idea would be set up were if it doesn't work I could hook it back up to the house's water system.

    The idea is that the fish tank water stays cleaner the more it's replaced and a toilet uses 40 to 60 gallons of water a day.

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    Re: Using Old Swimming Pool water to flush toilets

    Use a float in the toilet like on a boat sump pump to fill the toilet tank. You flush pump kicks on until tank is full. You should have no real problems but slower tank fills and water rings.(wife did not like that)

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    Richard320's Avatar
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    Re: Using Old Swimming Pool water to flush toilets

    Just setting a bucket in the bathtub to catch the water that goes down the drain while you wait for it to warm up is an easier way to conserve water. It can get poured in the toilet tank, or used for watering plants, or just slung into the pool to replace evaporative losses.
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    Mod Squad jblizzle's Avatar
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    Re: Using Old Swimming Pool water to flush toilets

    There is no way any of my toilets use that much water in a day ... MAYBE half that, but I don't think any are flushed enough for even half to be true.

    Interesting ideas though.
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    Mod Squad YippeeSkippy's Avatar
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    Re: Using Old Swimming Pool water to flush toilets

    Many many years ago while living in Virginia Beach, VA our water supply was in dire shape and the city instituted water rationing of 50gal/per/day. OMG we all became experts at creative water use. First everyone got wells sunk for the lawns and gardens. Then their was the practice of minimal toilet flushing- "If its yellow-let it mellow, if its brown-flush it down". Gross, huh? We also set up the clothes washer so that the laundry sink would collect the final rinse water and we'd use that to start the next load of wash or if it wasn't needed, filling a small trashcan with the water and using it to flush the toilet.

    It was not a lot of fun yet everyone was in it together so it made it more tolerable and in some ways adventurous. Necessity is the mother of adventure and all that....
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    Re: Using Old Swimming Pool water to flush toilets

    Quote Originally Posted by jblizzle View Post
    There is no way any of my toilets use that much water in a day ... MAYBE half that, but I don't think any are flushed enough for even half to be true.

    Interesting ideas though.
    A modern toilet used about 1 gallon per flush. I doubt we have 10 flushes a day at my house.
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    Re: Using Old Swimming Pool water to flush toilets

    If you need to use 40 gals a day dont filter the water and send it to a garden or lawn. Fish poop would be good for the pants and your fish would get fresh water. Or turn part of you tank into a hydroponic garden the plants will clean the water. I like to tinker so I would build the toilet for the fun of it.

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    Re: Using Old Swimming Pool water to flush toilets

    It's on my hurricane plan - with the pool I have a 19,000 gallon resevoir of fresh water, to be used as needed, for toilets or even drinking / cooking (may have to be boiled first). And yes I'm on a septic system...
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    Mod Squad jblizzle's Avatar
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    Re: Using Old Swimming Pool water to flush toilets

    Pool water should be a last resort for drinking water. There are threads discussing this.
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