Underground Rainwater Storage in an IBC With Pumped Supply
Intro: Underground Rainwater Storage in an IBC With Pumped Supply
Budget pumped rainwater storage. Commercial rainwater storage can be several thousand pounds. To save money I wondered if you could bury an IBC and it turns out you can ! Here's a complete pumped rain water system for about GBP 100.
See more inside......
See more inside......
STEP 1: Dig a Big Hole
Dig a very big hole. A standard IBC can be bought for GBP 40-50 and is 1mx1mx1.2m. It took about 3 evenings after work to dig the hole. We're lucky and have nice light soil.
STEP 2: Put Your IBC in the Hole and Connect
Drop that beast in there. I put a bottle gully at the base of the downpipe. I used a holesaw to cut a 100mm hole in the side of the IBC for the water in. For the overflow I used 40mm pipe which I drilled lots of holes in a ran it to a soakaway.
STEP 3: Make It Nice Again.
I first backfilled with earth. Next I used weldmesh to cover the IBC and fitted a inspection cover (From Drain Center) over the screw cap on the top. Then I poured with concrete.
Not too bad looking, if I say so myself.
Not too bad looking, if I say so myself.
STEP 4: Connect the Pump
Found an excellent pump on ebay for GBP 50 from a German seller called "werkzeuge-online"
It's a cheap Chinese knock off but works fine. It's got an accumlator and a pressor switch which holds the water at 2 bar.
Mounted in the garage. Ran the suction hose through the wall into the IBC. Ran 15mm pipe to the garden tap, which now runs pure rainwater !
I've been using the system for Aug and Sept and it's been perfect. The tank has been nearly full the whole time.
It's a cheap Chinese knock off but works fine. It's got an accumlator and a pressor switch which holds the water at 2 bar.
Mounted in the garage. Ran the suction hose through the wall into the IBC. Ran 15mm pipe to the garden tap, which now runs pure rainwater !
I've been using the system for Aug and Sept and it's been perfect. The tank has been nearly full the whole time.
41 Comments
Tahquitz 4 years ago
If you soil is light, did you add anything to distribute the pressure of the soil across the frame, not the container?
I am exploring using these as retaining walls, though I have to anchor them in place so they hold when empty.
Cheers!
South WirralC 5 years ago
ChristopherJames 8 years ago
Caving in does NOT sound good! Especially if you're intending to use that water in your house on a daily basis. But it's a good idea to make the most of the rain and save a bit of your water bill. Perhaps we could work out a way to pack the storage container a little bit better or put in some reinforcements on the walls of the hole in the ground to ensure it doesn't fall in on itself anymore!
Stavros! 9 years ago
Do the tanks cave in from the top or the sides? I'm thinking putting a sheet of fiberglass or thin sheet metal around the outside of the tank frame would keep the dirt from pushing in the plastic.
MariusN 9 years ago
Mine has caved after I had it in the ground empty for about 2 months. With a hole only 3 inch bigger than the tank on each side was enough to destroy my project. I was thinking to fill with water then cap it, fill with to concrete around and the frame to be as rebar. BUT theoretically would work but looking farther into it soon or later will cave in when its empty. JUST NOT MADE TO BE BURIED. Thank you but mine did not work if the tank runs empty or the level drops in the tank.
I WOULD LIKE TO HEAR FROM "ed_sturdy" HOW ITS HOLDING TODAY.
NavidA 9 years ago
Hello, i just read the post, and i am glad i did. We live in hollywood hills, in Los Angeles, and we have a major problem with drought and climate change. We are lucky to have a natural spring beneath our property the spills out fresh water in a corner of the our front yard at a rate of 750 liters per day. So i am trying do design a system that captures that water, stores it underground, pressurize it up to 100 psi , and connect it to the main the sprinkler system. What you did is very close to what i am intending to do. I just do not know what type of tank and pump is right for the job.
Donnatello 10 years ago
Hamish121212 10 years ago
Chakwaina 11 years ago
pbhj 15 years ago
tim_n 11 years ago
ed_sturdy 15 years ago
beecroft 13 years ago
burntsun 15 years ago
katuah 15 years ago
http://containerexchanger.com/subcategory/IBC_Totes/12
be careful, though - not nearly all will be food-grade/useable for drinking or garden water.
compujan66 15 years ago
netbuddy 15 years ago
ed_sturdy 15 years ago
netbuddy 15 years ago
Derin 15 years ago