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Uluwatu Public Toilets
Uluwatu Public Toilets
Last updated:
Uluwatu surfing spot, Pecatu, Bali, ID
Climate zone:
Wet/Dry Tropical

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Uluwatu Public Toilets

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Project Summary

Design & Build Sustainable Public Toilets for surfers and tourists at Uluwatu.. with NO WATER SUPPLY. These toilets endlessly recycle (rain)water through 40m2 subsurface wetlands back to a large storage tank.

Project Description

At the time there were no toilets at Uluwatu, private or public. Locals and visitors were using the bush or the beach for a toilet. The climate is dry for most of the year and there was no possibility of a water supply, even from trucks. This was my first large wastewater garden, and revolutionary as it was, it was based on sound Permaculture Principles, so it has been working, with occasional upgrades, for the last 11+years. A large water tank, 18.000l, catches scarce rainwater from the roof, then, by gravity, it flows to the toilets after which, wastewater flows down to a large, anti-sludge* septic tank, and finally through a 20m long, 2m wide, subsurface flow wetland. Outflows from the wetland fill a small tank fitted with an automatic submersible pump which, pumps the treated water back up to the storage tank. This small pump is the only mechanical/electrical part of the system. *I've been installing 'anti-sludge' septic tanks for many years, it's simple, it works, no pump-outs necessary. Note: In a perfect world I would have built a bigger septic tank and much larger wetlands, but, compared to people going in the bush and on the beach, this was a far better option, and it has continued serving the Uluwatu community to the present day.


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