Shower, sink, toilet, rainwater supply

[twentymak]

Hi everyone I will definitely be leaving my little apartment in town for a house soon.

I would like to install rainwater collectors to operate my toilets, shower, sink, sink, washing machine.

My first question is: How much water do I need to collect to make this work for a young couple without children.

Second question for water filtration: Can a swimming pool filtration system do the trick? and how many µs should I go to?

Third question: Connection and pumping of water?

I think of putting a T on the arrival of running water with taps to choose which water I use, but to have enough pressure in the taps when they are supplied with rain water, how to do?

I suspect that this kind of question must have been asked 1001 times, but in the mass of subject of forum I am a little pers.

Thank you in advance for answering me, or for directing me to good links.

[elephant]

Total consumption of 120 to 160 l / day / person is normal.

[twentymak]

Thank you for that answer.

So about to have a fairly large reserve of water at all times, telling that it rains very little in summer, that in winter yes, etc ...

It was my fraud to have a tank of what capacity to be quiet all year round?

Sorry to ask such basic questions, but I'm new to ecology.

[dedeleco]

For me drip irrigation of garden in summer two dry months, I need 50M3 per summer and even more !!
Result you have to store a pool of 40m3 at least: cost 5000 to 10000 € or even more, amortized at the price of water at 3 € per m3 from city water to save 50x3 = 150 € per year after € 10000 / 150 = 66 years !!
Result: for months tap water is cheaper than rain water !!!!
For you, if you only consume 100litres per day or 3 m3 per month and 6m3 per dry summer over 2 months (in the Var seaside it takes 4 months), you must have a reserve of at least 3 to 6 m3 or typically 1000 to 2000 € unless you take a cheap inflatable pool that will not last long, you amortize consumption over a year of 36m3 or 108 € in 18 years !!!
Limit, unless you consume more in winter or you are in Brittany very humid with never more than two weeks without good rain and not in the PACA region.
But if you are green you do not look at the price?
I forget the purity of rainwater sometimes with pesticides from neighboring farmers !!
Finally in the Paris region a house of 100m2 on the ground gives a maximum of 60m3 of water per year on its roof that you cannot exceed !!!

[zorglub]

for my case over 3 years and 3 months I saved 126 liters of water and 515 € thanks to my collection supplying the toilets and the washing machine

[Rabbit]

The first thing to know is to know the rainfall
your region.
Then:
The roof surface usable to collect rainwater.
-The volume of the tank does not depend on the number of users
but the volume of water available (up to a point, of course).
The storage method you plan to use (underground or not)
The technical means at your disposal (and know-how).
- by i mean, if you do not know how to masonry or pour concrete
let alone hold a shovel, this limits the possibilities or
then that will have an impact on the budget.
The budgets planned for this investment.
Finally a reading, after research, in depth on the discussions
that have already taken place on this forum As well as good research on
the web to already know what we are talking about. I refer to this:

I think to put a T on the arrival of running water with taps to choose which water I use,

but to have enough pressure in the taps when they are supplied with rainwater, how to do it?

In one sentence, 2 subjects of concern: legal as well as sanitary.
The other demonstrates insufficient knowledge to embark on a
such a project. Even if we advise you, it will not be enough.
About profitability. The amortization will be up to your
work, the more you will do yourself the faster it will be.
the efficiency of your installation will depend on a preliminary study
of the site.
Remember that the price of water will go up in the future.
even say that it will be very fast. When I did my first
water tank was 10 frB / M³, we are more than 120FrB
in less than 15 years. This gives an idea of ​​this progression and
therefore foreseeable amortization time.