ThePBM;988966; said:
What i still want to know if the water that goes from tank to toilet is filtered. He said it is used in place of an overflow, where the water would not be filtered.
That does raise concerns of regularly releasing a steady supply of microorganisms and plant life into drainage systems. For a place that doesn't have pressurized water, it might be safe to assume the worst.
Where do you put your waste water when you do a WC ??? mine goes into the john, so this is NO different to me... steady stream or not, the overall volume is the same, & I don't time my flushes with mt neighbours...
Plumber;988405; said:
Lil Stinker is correct on both points. It will take longer than normal for the toilet to fill and if the float valve in the fish tank malfunctions you will have serious issues (can't believe I missed that one!). I don't necessarily agree with the 3 gal. issue though as a 1.6 could be used.
3 gal is an older standard, since we have not established the water closet volume, I am giving generals. my tank is (circa 1976) 20*8*6 which is 4 gals minus hardware which is low profile & takes up almost no space thus 3 gal is my flush rate (lest we not forget bowl flow while filling).
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All that in mind getting the bowl to top off will be extremely difficult, if gravity is the only pressure filling the john. I am not saying this project can not work. I am saying there is much more thinking to be done.
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Time for assumptions.. The tank size? 55, 75, 110, 220? With a HOB filter I assume 75 or less. Changing (lets call it) 2 gal per flush, I have 3 kids & a wife. I am gone 10 hours a day & use the john 3 times at home. let's say the wife & kids are 5 each per day. 23 flushes 46 gallons (69 in my house). will that be too much for your tank size?
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more thinking ... tap off the john water rather than shutting off.. put a second valve in the john so when it flushes, there will be both fresh & waste water entering the toilet tank.. this will maintain pressure for the fill, but reducing the volume of fresh water being used on the john & providing a smaller water change per flush lets say .5 to 1 gal per flush..
just a thought....
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Remember that the HOB filter is an issue in a power failure situation... your normal flush will work, however your filter will then loose prime & empty out (possible even with the pump running)
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there are reservoir/pump units that are designed for using reclaimed water in a toilet, perhaps incorporate this technology (or even a small purchased unit) into the design. they are essentially a holding tank (reservior), a pressure tank & pump.
The reservoir holds water from your fish & the pump fills the pressure tank. when the toilet flushes, the pressurized water runs the john. then the low pressure tuns on the pump & re-fills the pressure tank. In this case you could have the fish tank act as the reservoir tank & the supply line will re-fill it when the level falls.
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I think it is a fantastic idea, but don't start it without thinking it all the way through, & have a back-out plan...
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here is my poor changes to your original sketch....
