forums energies: society, ecology and clean technologies

Hello,
A second greener life for my fuel tank:
It is a stupid idea to imagine using an old fuel tank to store rainwater for garden watering and WC water use. Is there a way to clean it properly to avoid any risk of pollution?
Stupid or not?

Hello,

The problem is less pollution than corrosion if the oil tank is made of metal.

Indeed, this one is not treated anti corrosion on the interior face (logic, the fuel oil is a "preservative") ... therefore the tank will not last long ... and the cost of an internal treatment is prohibitive considering the use and the price of a plastic tank.

Otherwise the subject has already been mentioned here: https://www.econologie.com/forums/ancienne-c ... t6004.html et https://www.econologie.com/forums/reutilisat ... t7636.html or even https://www.econologie.com/forums/hydroaccum ... t5207.html

Do not hesitate to use https://www.econologie.com/forums/search.php

Christophe wrote:... and the cost of an internal treatment is prohibitive given the use and the price of a plastic tank.

it depends on what you mean by prohibitive.
it cost me 1200 euros
if I wanted an equivalent plastic tank: 5000L buried, it would certainly have cost me more.

Ah thank you for the info but what did you do as treatment specifically? Do it yourself or by a pro?

As for the price, not on: https://www.econologie.com/forums/recupe-de- ... t7125.html
500 € the 3000L septic tank ...

Economically I do not know how to decide between the 2 solutions by cons ...

the details are on the first post you cited. 1200 euros by a professional: cleaning and epoxy painting inside the tank.

when I compared the prices, it was the same end result. if I wanted to have the same capacity buried, in addition to the price of the tank (concrete for example) I would also have had to bury it

Ah yes had not read the answer at the time!

Uh, did they do that on the spot, or did you have to dig up?

well no, if digging up, not interesting, you might as well put a new tank.
they enter the tank (must not be closed) with the breathing equipment, pickle everything with solvent while a vacuum cleaner in the bottom sucks all that drips and it goes in a de-oiler (to recover the solvent I think).
after they pass a kind of abrasive then the epoxy resin.

Ah the cow sacred job ... but how they open the tank to be able to enter it? Since we can, a priori, neither grind nor oxy cut if ??

We also have a 5000L tank and it is impossible to get into it ...

any tank constructed in accordance with the rules of the art has a "manhole", this is the cover on which the oil connections and returns as well as the air intake, filling, etc. are taken.
it's about 40cm in diameter

Ah ok ... I should watch ours one day ... but good considering what we use it ...