Feed the rainwater in toilets

[mattlive]

Hello

Here I would like to supply my toilets with the water from my rainwater tank, I have already read some subject above, in particular on a suppressor pump, the problem is that I did not get anything… someone could he explain me? . Otherwise I had the idea of ​​supplying my toilets with a normal pump but by "moving" the switch directly into my toilet ... basically I turn on the pump in my toilet when I need water to fill the flush. water… when do you think ??
Thank you for your answers (even if the question may seem stupid for specialists)

[salsitawapa]

Hello, at the beginning I put a relay on the sse light which started the pump when I turned off the bathroom light. The pump stopped after a minute and 15 minutes. I quickly replaced this system because the pump was running more than it needed. So I added a bladder tank + pressure switch in my garage and now no more problems. Go see on irrijardin.fr there are tanks ... But I advise you your idea.

[marc91]

Hello

it would be necessary to put a fitration at 50 microns
on the other hand do you have a connection to city water in case of emergency?
if yes you must put a backflow preventer between the two networks

greetings marc

[salsitawapa]

I do it manually. How to do it automatically ??? Thank you

[marc91]

either buy a backflow preventer, model for heating by expl, or put two valves, with a non-return valve between the two

the goal is to prevent the drinking water system from being polluted by the rainwater system

[salsitawapa]

the check valves I put them. By cons, I can not find anything that explains me correctly the backflow preventer ... If you have a site.
Thank you

[boubka]

anti return + valve suffices it replaces the disconector and especially it costs 10x cheaper

[elephant]

Anti returns are desirable, even mandatory

- at the entrance of the house (compulsory in all circumstances)
- at the junction of the tank water circuit - city water circuit
- on the central heating water make-up

it is not very expensive anyway!

[little sparrow]

Bonjour,

I must point out here that any assembly allowing a physical connection between the different interior networks is henceforth prohibited.!

any assembly of the type double-valves, valves + non-return, anti-machine or anti-bazaar is no longer authorized, including even the backflow preventers themselves !! (which do not prevent a possible rise in bacteria although they avoid any "water return" ..)

the principle of disconnection "by total overflow with load break" , as applied to automated pumping stations (which all installers now install) approved to standard EN1717 ...

[little sparrow]

.

extract from Order of December 17, 2008 relating to the control of private drinking water distribution installations, withdrawal works, wells and boreholes and rainwater recovery works :

II. Control of private water distribution installations from abstraction, wells or boreholes and rainwater recovery:
1 ° .....
2 ° Concerning private water distribution installations from rainwater recovery:
The agent for the public drinking water distribution service checks:
- theno temporary or permanent connection the rainwater network with the public drinking water distribution network;
- the existence of a disconnection by total overflow if the rainwater distribution system is topped up with water from the public drinking water distribution network.

cordially