Using rainwater for the house?!

Hello guys,

I think that rainwater could definitely be used for the house in a great way. For example, as greywater for flushing the toilet or for the washing machine, that would be optimal. Are there already systems available that treat the water?

see you Ganurin

Such systems are already available for purchase, I once saw a report in which this was presented. The rainwater is channeled from the gutter into a tank and from there treated, which is a great thing for the environment.

Eisbär

Hello everyone,

I think rainwater could definitely be used really well for the house. As service water for the toilet flushing or for the washing machine, that would be optimal. Are there already systems that treat the water?

See you, Ganurin

Sure, there are rainwater cisterns that treat the water accordingly (built-in filter systems) and can distribute it within the house; or you can use it as water for your garden.

A few days ago I asked the architect how to best use rainwater, like for the garden, toilet flushing, washing machine...

He said he has such a system himself, and he uses it for the toilet and plants – but not for the washing machine!

Of course, I asked why, because rainwater is so soft, which saves detergent, etc....

He told me that although they have filters installed, the water isn’t completely clean... he said that if they were on vacation and the water in the toilet stands there for a while, when they return there is always some kind of film on the toilet water...

Whether he has a crappy filter system in the cistern or if that is generally the case, I don’t know.

I think, to be on the safe side, I would avoid using it for the washing machine... but for the garden and toilet it’s an ideal idea.

You have to calculate your demand, then you can determine the size of the cistern.

Just search on the big brother’s search engine for keywords like rainwater cistern, rainwater use, or similar.

Best regards
Honigkuchen

that is a great thing and if I had the opportunity I would do it too. Because when I imagine how much drinking water goes down the toilet alone then that is definitely the better solution.

The use of rainwater is becoming very popular and I really think that's great. Especially for the toilet, it is truly a sin to use drinking water for that.

lg Locher

Hello, from an ecological perspective, there is actually nothing against such a system. But if you want to save money with it, not much comes out in the end. First, you have to calculate the costs for the entire system. If you build without a basement, the cistern has to be buried outside. That also means that everything has to be frost-proof or only used during the frost-free period. Then there is the fee for the second water meter. You have to have that because wastewater charges are calculated based on it. In addition, there are electricity costs for the pump. You also certainly have to see how many people live in the house and how long they are present during the day.
Regards Thommi