Recovery of greywater

[zouzou75]

Many talk about the recovery of rainwater ... For my part I am interested in the recovery of "gray water" (bath, shower) to recycle it in the toilet flush.

My idea is as follows, knowing that I will have:
- 1 bathroom upstairs
- a WC on the ground floor

I intend to slide a flexible plastic tank under the bathtub (type drinking water tank, for boats), connected to the bathtub drain via a "T" pipe, so that the overflow can drain out if necessary.
Then, it would be enough to connect the outlet of the tank to the toilet flush, which are located on the floor below ... But leaving however a classic water tap, openable and closable at will, at case where the “gray water” stock is sold out…

As I have found little on the net on this subject, and it seems surprising to me that no one has looked into this kind of system….
Has anyone here tried a similar system? Found any tips?

[Sat-going]

Hi,
it's not your system, but should be filtered dirt right?
the risk is actually to clog up the flushing system.

[Former Oceano]

I have mentioned this several times and I will take advantage of the renovation of the bathroom (it's been 8 years since we bought the house and we can only use the shower) to adapt this.

I put aside (in garbage cans) aquatic plants in order to make a small biological purification in addition to a sand filtration.

The amount of soap is relatively small compared to the amount of water. Currently, I collect the water from the little girl's showers and bath (in her plastic bathtub) and I use it to water the plants and in the toilets.

By cons unlike you, my toilet is upstairs. So I will have to bring the water upstairs and store it in the attic (in the 220L tank of the HS water heater that I replaced last Wednesday ...)

[zouzou75]

Ah, interesting ... So you're going to use a pump, right? What will you take as a system?

Otherwise, to answer the problem of "cleaning" the water ... Frankly, I think it's mainly because we are used (sorry waste!) To relieve ourselves in drinking water .. But actually, as ex-océano says, the water in the shower or the bathroom is in fact very little dirty: 1 / 1000th of soap which floats inside to break everything ...
In addition, as I often perfume lmes baths with baking soda (recognized anti-lime) added essential oils, it should go side "fouling" ...

From which I conclude that rinsing the tank once a year or every 6 months with clear water and vinegar should be more than enough ...

[zouzou75]

Ah, and yes: where will you do your sand filtration?
As you talk about plants, I assume you are making a transition through the garden?

[Rabbit]

Otherwise to purify the water you could use a bubbler
aquarium with the matching pump. It does not consume
a lot, a few hours spread in 5 min increments during the day should be enough.
water stagnates and perfumes your bathroom.
To pump water I would use a regulated hydrophore group
has 2 bars.
Remember to provide an evacuation for the overflow of your tank.
Use this drain to top the surface of the water.
Hopefully the bubbler will scum which could be
evacuated by the overflow.
To purge the bottom of the tank uses a cellar vacuum, for this kind
work is very effective.

Keep us up to date for the rest of your experiences.

You pique my curiosity, made that I asked the question to Google
here is what he found:

http://www.bracsystems.com/fra/accueil.html

http://durable-et-responsable.hautetfor ... d-eau.html

There are surely others but I did not have the courage to
look for more.

[zouzou75]

Excellent, your "Brac" link! It still makes me happy to know that someone has already thought about it!
(I had trouble googlating!)

For the bubbler, I will watch this if I understand how it works and what we can do with it (otherwise I will submit the trick to my friend: he is especially the handyman!). But even a low consumption of electricity, it annoys me a bit: the fun is still to be ultra-economical!
(This is also the advantage of my layout: not even need a pump, the pressure is enough.)

I said to myself that, since we take showers every day, that should be enough to renew the water and prevent it from stagnating ... But I am not a water specialist: therefore, perhaps a sand or carbon filter?

Otherwise, for dry toilets, for me it is out of the question since I live in duplex (city building).

[Rabbit]

For the bubbler it is not complicated, it is about a small pump has
air blowing in through a low air hose
pressure of a porous synthetic block. This produces bubbles.

The power of the pump depends on the depth at which it
the bubbler will be placed as well as the air flow desired.

Regarding the investment of the recycling system,
since it is homemade manufacturing it is very
reasonable If this can console you the water saving will cover
largely the short-term costs.

The only thing that prevents me from installing this system is that
I am afraid that the mistress of the house will get a yeast infection
following a splash. It does not make a fold that it would make me
Aside from this reluctance, the system seems to me very
interesting.

[zac]

The only thing that prevents me from installing this system is that
I am afraid that the mistress of the house will get a yeast infection
following a splash. It does not make a fold that it would make me
Aside from this reluctance, the system seems to me very
interesting.

Hello
you ostentatiously put a bleach tablet saying that it takes 5 years to dissolve and you are covered
@+

[zouzou75]

Same opinion as Zac: the blow of the mycosis, in my opinion, that comes under the parano hygienist ...!

Let's say that it makes me think of all these "anti-bacterial" products (and filled with toxic in the process) that we have laid down by kind, kind industrialists ... and whose frequent use is in fact not recommended, because bacteria .. well, it's normal that there are some in a house, no need to want to live in a hospital, as much as having normal immune defenses!

Well, after if someone pulls out a serious link that will show me that shower water passing 24 to 48 hours in a tank can give birth to an explosive culture broth that risks jumping in my butt ...! Okay, I will look into it.

In the meantime, I am still determined to save around 15 flushes per bath ... Which seems to me both eco-friendly and quickly profitable!