well ive just started my build, im going with a different plan but similar to the one in the link.
so i picked up a couple of under bed storage containers which are the ideal size for my build (£3.99 each) and ive just finished building a bell syphon into one of them (made from 21 and 40mm pvc tubing). currently very happy with the bell syphon as i was expecting it to be a much harder build. but after a couple of tweaks its emptying nicely in around 30-45 seconds
P1 ive been considering that lack of electricity at some point could be an issue, which is why im looking at a solar panel set up
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it will mean an initial outlay of a couple of hundred but will also mean that should the power go out ill have a small back up supply