A small update on the rainwater harvesting system
The first tank went in in Early December. Within a fortnight it was overflowing!
Rainwater harvesting by
British Red, on Flickr
So a larger capacity was clearly warranted
Four more IBC tanks arrived this week
IBC Tanks by
British Red, on Flickr
To connect them all up I decided on a fairly "Heath Robinson" approach. These tanks are currently aimed at use for crop watering - so compatability with a hose sytem seemed vital. Here is how we did it
First we lined up all the tanks with tap outward
IBC Tanks in place by
British Red, on Flickr
If you see the bottom of each tank there is a threaded outlet
IBC Tank Threaded tap by
British Red, on Flickr
You can get standard 60mm blanking plates for these, they can be drilled and a standard hozelock adaptor put in
IBC Hozelock Adapters by
British Red, on Flickr
When connecting these, I have found it useful to grease the washers and thread with petroleum jelly (Vaseline) to get a good seal
Greasing the washers and threads by
British Red, on Flickr
Now I could just daisy chain the tanks, but I want to able to empty individual tanks for cleaning etc. So I bought a four way adaptor with taps on each spur.
Hozelock 4 way splitter by
British Red, on Flickr
This was attached to the tank filled by the downspout
Tap with adaptor and splitter by
British Red, on Flickr
The "primary" tank is connected to the splitter
Splitter connected to tap by
British Red, on Flickr
Each subsequent tank is connected to a spur by a length of hose (with a hozelock connector at each end)
Connecting up the master tank by
British Red, on Flickr
The whole lot together looks like this
Completed rainwater system by
British Red, on Flickr
To make it work, open the main blue tap on the primary tank. Then to "cross flow" to another tank, open the relevant red tap on the splitter and blue tap on the required tank. If all the blue tank taps and red splitter taps are opened, all five tanks fill at the same rate.
To use water from a tank, close thre relevant red tap on the splitter (to stop the primary tank filling it), close the blue tank tap (to prevent wet feet). Then disconnect the hose from that tank. Either use gravity to feed a trickle hoze or connect up a hozelock compatible pump
Well pump by
British Red, on Flickr
well pump sprinkler by
British Red, on Flickr
With our "steading" of barns, I think I can comfortably get up to a dozen tanks or more and keep them full
Red