OFF GRID Rainwater Harvesting – Part 1 concrete foundation

Dry Well to drain water away

Working on the dry well to drain water away from under the tank

With that done I’ll dig the hole for the dry well.

Working on the dry well to drain water away from under the tank

Then line it with fabric and add some drain rock.

Working on the dry well to drain water away from under the tank

I set half a rain barrel in the hole and ran the drain pipe into it. Then filled in rock around it.

Working on the dry well to drain water away from under the tank

Then finally topped with some dirt and sod.

Gravel for the Tank Base

Prepping the base with gravel

I keep the new concrete damp and covered with plastic for a few weeks while it cures. I roll out fabric and fill the space with coarse drain rock.

Prepping the base with gravel

Then top this with pea gravel.

Packing the Loose Gravel

Prepping the base with gravel

I pack and level this then we can set the tank in place.

Setting 500 gallon rainwater tank in place
Setting 500 gallon rainwater tank in place

So I hope you have enjoyed this post, and thank you so much for reading. If I make any further improvements or changes I’ll post them here.
And, while you are here, please hit the Support Link to help us make more projects and videos like this. We really appreciate anything you can do to help us out!


Jump to:

Off-Grid Rain Tank Part 1 – Pour the Tank Foundation
Off-Grid Rain Tank Part 2 – Build the Tank Surround
Off-Grid Rain Tank Part 3 – Tank Plumbing and Fittings
Off-Grid Rain Tank Part 4 – Install a Solar Powered Pump


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