Dishwasher powered by reclaimed rainwater?

Work concerning plumbing or sanitary water (hot, cold, clean or used). Management, access and use of water at home: drilling, pumping, wells, distribution network, treatment, sanitation, rainwater recovery. Recovery, filtration, depollution, storage processes. Repair of water pumps. Manage, use and save water, desalination and desalination, pollution and water ...
Tonioo
I discovered econologic
I discovered econologic
posts: 6
Registration: 09/08/08, 13:23
Location: Rouen

Dishwasher powered by reclaimed rainwater?




by Tonioo » 09/08/08, 16:29

Hello everybody

For some time now, I have had a rainwater recovery system at my home (4000L concrete tank, 90µ booster and filtering at the pump outlet). The toilets are connected and I will soon add the washing machine and a 25µ filter for it. I have read quite a few articles on the forum but a question remains:
Is it risky to connect a dishwasher to untreated rainwater?

My question mainly concerns the contamination problems knowing that the rinsing water will be in contact with the dishes and therefore the food : roll:

Tonioo
0 x
User avatar
Rabbit
Grand Econologue
Grand Econologue
posts: 823
Registration: 22/07/05, 23:50
x 2




by Rabbit » 09/08/08, 17:40

I have been using rainwater for several years and we have had no
No worries. It is used for washing machine, dishwasher, wc
and water the animals (dogs, cats and chickens, a pig should
join my little menagerie by mid September).

Despite everything, take the precaution to protect the conduits
and the earthworm tank. As for the birds,
obvious .
0 x
alew
I learn econologic
I learn econologic
posts: 25
Registration: 04/06/08, 08:50




by alew » 11/08/08, 17:13

Really very nice your little installation. You wish with the 25µ filter in addition to your 90µ it's just a small question because I have this idea that is also running through my head :).

For me there is no concern that you will have a very good filtration but I am not an expert so I give the floor to others while following your subject closely;)
0 x
Tonioo
I discovered econologic
I discovered econologic
posts: 6
Registration: 09/08/08, 13:23
Location: Rouen




by Tonioo » 11/08/08, 18:25

Thank you. Yes, I intend to filter at 25µ on a cartridge dedicated to the washing machine. As for the dishwasher but I have doubts because this water will still not be drinkable

So if someone wants to enlighten me :|
0 x
Tonioo
I discovered econologic
I discovered econologic
posts: 6
Registration: 09/08/08, 13:23
Location: Rouen




by Tonioo » 11/08/08, 18:28

Rabbit wrote:Despite everything, take the precaution to protect the conduits
and the earthworm tank. As for the birds,
obvious .

Thank you for these details, but how can you protect the tank?
On the recovery or return side?
0 x
jonule
Econologue expert
Econologue expert
posts: 2404
Registration: 15/03/05, 12:11




by jonule » 12/08/08, 09:47

both, with grid or mosquito net for anti-animals.

the dishwasher goes up to T ° C to kill bacteria at + 63 ° C, and you have a detergent, then the dishes dry in the open air: you risk nothing.

Does your tank have a "pre" retention / settling tank?
is it oxygenated (bubbler type aquarium)?
do you have a prefilter as input?
0 x
User avatar
Rabbit
Grand Econologue
Grand Econologue
posts: 823
Registration: 22/07/05, 23:50
x 2




by Rabbit » 12/08/08, 10:21

For earthworms, they usually invite each other in passing
between the descent of the gutter and the conduit which brings
rainwater to the tank. There is also the inspection hatch,
this one must be sealed with petroleum jelly. It holds several
years, it is cheap and non-toxic. The worms do not cross it
not .

The other causes of pollution are, leaves and pollen
(softwoods when you are close to a wood). For pollen
there is nothing to do, you must empty and rinse the tank d or interest
to have easy access to the tank.
0 x
Tonioo
I discovered econologic
I discovered econologic
posts: 6
Registration: 09/08/08, 13:23
Location: Rouen




by Tonioo » 12/08/08, 10:46

Thanks for all these tips!

Ok, so forget the 35 ° eco programs on the dishwasher :frown:

I don't have a settling tank in the tank, just a filtering system that deserves to be improved. And no bubbler. On the pressure side, I will try to put a grid. In entry, no worries for earthworms because the connection is tight between the gutters and the tank entry.

For filtering, I would like to design a box of this type (this one is a bit expensive : Shock: ) If you have any ideas

http://www.aquaboutique.fr/filtre-jardi ... -p-29.html

Tonioo
0 x
jonule
Econologue expert
Econologue expert
posts: 2404
Registration: 15/03/05, 12:11




by jonule » 12/08/08, 11:25

€ 225?
you can also make it yourself with a little trick ...

for the dishwasher: detergents kill bacteria normally, right?
what do you use as dish soap? with an organic product you get the exit for the garden "for example" ...

otherwise you can prefilter at the outlet of the tank after booster: 5µm, then ... a microfiltration normally at 1µm kills all bacteria (as well as an activated carbon filter):

Image

taken from a site that gives everything, him:
http://www.eautarcie.com

but there is still more simple: using rainwater in solar thermal panels to distribute solar hot water in the domestic hot water network (DHW), therefore coupled to the shower, bath, dishwasher, washing machine linen etc ...!
0 x
Tonioo
I discovered econologic
I discovered econologic
posts: 6
Registration: 09/08/08, 13:23
Location: Rouen




by Tonioo » 12/08/08, 11:38

jonule wrote:225€ ?
you can also make it yourself with a little trick ...

It's clear ! my remark was ironic : Cheesy:

jonule wrote:for the dishwasher: detergents kill bacteria normally, right?

Yes during washing but not during rinsing
For filtering, I had already dissected the eautarcie site but I do not think to filter as much. I would already like to optimize my filtering at the tank inlet so that I don't have to clean it every month ...

jonule wrote:but there is still more simple: using rainwater in solar thermal panels to distribute solar hot water in the domestic hot water network (DHW), therefore coupled to the shower, bath, dishwasher, washing machine linen etc ...!

Ah yes, it's clear that this is the top! I'll think about it for my next home.

Thank you so much!
0 x

 


  • Similar topics
    Replies
    views
    Last message

Go back to “Water management, plumbing and sanitation. Pumping, drilling, filtration, wells, recovery ... "

Who is online ?

Users browsing this forum : Majestic-12 [Bot] and 157 guests