Tag Archives: water

SGEV Gray water treatment

A good greywater recycling page — general info and links to other systems: http://greywateraction.org/content/about-greywater-reuse Another good graywater resource: http://www.greywater.net/ Artificial aquifer Tube Well: A way to filter pond or surface water: http://www.povertyenvironment.net/sites/default/files/pep-files/Artificial%20Aquifer%20Brochure.pdf Engineers without borders: A good page full of … Continue reading

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Potable Water Treatment Plant resource info, references, notes

Programming notes, Sequence of Operations: Valve V1 (Diverts incoming flow from stream intake either to WTP or to bypass, depending on water level in storage tank.) Install vertical float switch FS-1 in water storage tank, near top.  Set difference in … Continue reading

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Water Filtration Technologies

Recommended for highest quality pure drinking water. Install under kitchen counter, keep a carafe or jug(s) filled for emergencies, to see you through short term outages. KDF/GAC / CARBON BLOCK/STER-O-TAP WATER PURIFIER This three stage purifier provides an unparalleled level … Continue reading

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A Simple Low Cost DIY Chlorinator

CTI-8 Chlorinator CTI has developed a device capable of disinfecting water in gravity-fed potable water systems. The device, called the CTI 8 Chlorinator is an inexpensive, low-maintenance, non-electrical, appropriate-technology apparatus. It is capable of delivering a controlled dosage of chlorine … Continue reading

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Potable Water Treatment Plant

Links to background info, basis of design:  Specific design features, edited and highlighted from original document: Manz Slow Sand Filter Water Treatment Plant drawings: WTP-EN ESPANOL-NEW  or WTP-IN ENGLISH-OLD.pdf. Online calculator used to estimate demand, calculate flow rates and size the … Continue reading

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Testing potable water for free chlorine

Chlorine Residual Testing: A document from CDC/SWS (Safe Water System) describing how and why to test for residual (free) chlorine in drinking water.  Includes pros & cons of various methods. Quoting… “The presence of chlorine residual in drinking water indicates … Continue reading

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Aquaponics Water Testing Manual

A free manual From the Center for Tropical and Subtropical Aquaculture. Testing your Aquaponic System Water: A Comparison of Commercial Water Chemistry Methods Introduction: Aquaponics involves the dynamic interaction of fish, plants, bacteria, and their aqueous environment. The fish and … Continue reading

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Hydraulic Rams

Home-made Hydraulic Ram Pump from Clemson University Hydraulic Ram Pumps from Practical Action A full description of how to build and install an Atlas Ram Pump from a kit is contained in the ‘The Original’ book  Hydraulic Ram Pumps, How … Continue reading

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Gravity Water Flow Systems

An excellent design guide for  Understanding Gravity Flow Water Systems More factsheets from the same source: Gravity-pressured flow is prone to partial or total blockage by trapped air pockets. These can be erratic; several hours or days of system use … Continue reading

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