Pour Concrete in the Rain Tank Curb Forms
Now it’s a matter of loading the concrete mixer and filling the forms. My little mixer can handle 2 bags at a time.
To save my back I have the bags stacked at the end of my pickup box. I add some water, set the bag over the drum and cut it open to dump it in. Then start the drum spinning before tilting it. When this is mixed I do the same with the second bag.
After a few minutes I rotate the drum over to the other side and dump it in a wheelbarrow.
Shovelling Wet Concrete into Forms
The curb is narrow so I opted to fill the forms by hand with a shovel instead of just pouring the concrete right out of the wheelbarrow. Given the slope and access, I decided I’d spill a fair amount of the wet concrete so, shoveling would take longer but waste less. And this worked well.
Marilyn came to give me hand and that went much faster. We got into a flow and the pour went much faster than I expected. I loaded the mixer and Marilyn filled the forms.
Stripping the Forms
After a few days I stripped the forms. And this went well. The outside boards came off without any problems. And the inside ones as well. The curb looked great. I kept it covered with plastic to cure for a while longer.
Fill the Rainwater Harvesting Tank base with gravel
I rolled out some drain fabric and shoveled in a layer of crushed road base. Raked this flat and packed it down.
Packing the Gravel
Then I topped up the base surround with 3/8″ pea gravel. It’s a finer round rock that drains well and has no sharp edges that could puncture the tank. The pea gravel does not pack so well so I added some sand to it. And that seemed to help.
Sliding the Tank into place
With the gravel level and packed we slid the tank into place. We used some 2 by fours and a strap around the tank to help with this. It was satisfying to finally get the tank into 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.
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