Water tank

ENIB réservoir deau1

https://wiki.lowtechlab.org/wiki/R%C3%A9servoir_d%27eau/en

Dernière modification le 28/06/2024

Difficulté

Easy Facile

Durée

1 day(s) jour(s)

Coût

35 EUR (€)

Description

Rainwater harvesting system. The system is simple and sober. Connected to a gutter, the tank installed on a wooden structure contains the recovered water.

Sommaire

eau de pluie, récupération

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Introduction

"We love water, but in 20-30 years there won't be any left". Even Jean Claude Van Damme understood the importance of water for our future. If this theme is important to you and you like DIY, then this tutorial is for you!

Here we present our low-tech rainwater storage system. Connected to a gutter, it will provide you with water for watering your garden or washing your car. For our part, it will be installed on our school campus to clean surfboards.

On our campus, some buildings are equipped with a highly efficient rainwater harvesting system. At home, all you need to do is connect it to your gutter.

To obtain a good flow rate, the tank must be as large and as high as possible. For the mathematically minded, we'll give you a short demonstration below.

1. 
2. 

Matériaux

• wooden pallets (3-4 depending on the size of the crates), ours were 160cm*280cm

• gutter connection / bracket
• a plastic valve
• pipes, we used diameters 25-27
• watertight barrel with lid
• screws, we used 160cm screws

Here are a few tips to help you find the equipment you need:

• the wooden pallets were found in a company near our school
• the barrel was given to us by a car garage, but we had also found one at a recycling centre
• the hose was found at a recycling centre
• the screws and tap were bought in a Mr Bricolage/Brico Dépôt store

Outils

• DIY tools and protective equipment (circular saw, screwdriver/drill, gloves, goggles)
• mastic to seal joints

r_sevoir_d_eau_Approche_the_orique.pdf

Étape 1 - the wooden base

Firstly, you need to cut the pallets so that only the right size pieces remain.

We decided to keep the same length and width of 3 slats, as on the 1st

We decided to cut out 3 pallets like these, and fix the last side with their offcuts, as shown in the last photo.

Étape 2 - the watertight barrel

The lid is fixed to the barrel, so we only have access to the 2 holes at the top (1st image).

We glued one in place, and kept the 2nd to run the pipe from the gutter.

Next, we drilled the barrel to fit our valve: we drilled it with a drill, then filed the edges. We then put some mastic on the tap before installing it, and we put some more on top of it to make sure it was watertight. Be careful, the mastic dries quickly on your fingers, so we advise you to keep a bottle on hand, as you can see in the photo. You'll then need to wait at least 24 hours for the mastic to dry.

Étape 3 - le montage

Afin de sécuriser le tonneau, nous avons ajouté un “plancher”, 2 lattes supplémentaires comme sur la photo à côté. Le tonneau se retrouve alors bloqué par les rebords du socle.

On aperçoit le système de déviation de l’eau tombant dans la gouttière : une bride a été installée sur le câble, sous la protection métallique. Une vanne y a été installée, puis nous avons ajouté le tuyau, fixé au tonneau et rendu étanche grâce au mastic.

Nous avons pu observer que l’eau s’écoulait bien du robinet : nous y avons alors fixé le tuyau, et ainsi pouvoir utiliser ce récupérateur d’eau comme nous l’avions imaginé.

en fr 1 Published