John C Daley wrote:Peter, I have a bit of experience with the topic. My signature has a link to rainwater harvesting. Perhaps read it and come back to be with questions.
For a start I would make theses suggestions for consideration;
- Have a storage tank which can hold 6 months supply of water
- fit a rainfall collection system that will work in your area.
- do you get snow etc, remember I live in rural Australia.
- dont bother about water treatment systems, a large storage tank will address that issue.
- dont mix city water with the other stuff, keep it separate.
- do you use much town water?
- fit first flush units to the roof gutters.
Tell me about the area.
- is it dusty?
- do you have trees around the house?
- what do you wish to use water on?
- how is water drawn from the creek?
I have found out this about the area.
- is one of the driest places in western Washington.
- 17" of rain a year, much the same as where I live.
I am going to suggest the following subject to a better understanding.
- draw water from the stream to fill a big tank, separate from the other sources of water.
- Direct all roof water to another tank if possible.
- the existing small above ground tanks could be used to catch water from remote sheds and pump it back to the large one.
- i would consider not using the well.
- you will be able to drink rainwater without treatment.
- Dont mix the different sources of water, mainly in case something goes bad, you can find the cause.
Rainwater can be used in the household
Creek water gardens and toilet flushing
Town water back up only.
Josh Hoffman wrote:A less expensive option would be to put a 3" WYE and then put an RV gate valve on each side. The gate valves are $20. You can search 3" RV gate valve.
They also have 4" options for more $$ and electric operated ones for even more $$$.
Here is the one that is ready to go and electric but $$$$
https://unitedrvparts.com/products/valterra-ez-valve-electric-waste-valve-3-hub-x-hub-x-hub-double-rotating-flange-e85-8?variant=45365270708527&srsltid=AfmBOorEj4Oi4ApaOvTTHr0joxOlSYJZP8FN8U8mx7CJCQVAs7tHXk4RBdo&gQT=1
Christopher Weeks wrote:I think you're looking for something like this, but ideally, electrified: https://www.thenaturalhome.com/septicdirectorvalve/
But my impression is that most people would not call what you want to call greywater, grey. It'll be black because there will always be fecal residue in the drainpipes before the splitter.
And so you're probably stuck having all the slab-level floor-drains combined (and black), but you could retrofit the structure so that first-floor sink drains and drains from the second floor exit through the wall and into your greywater wetland system.