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Low pressure Rain barrel water timer |
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Reasons for saving water you
might not realize ...
The following are aspects of saving water that pertain to water heating
and
electricity (topics on my website).Saving water saves electricity from not pumping water. Conserving water means a smaller water heater... and less energy consumption. Smaller water heaters have higher efficiency. 9 ways to save Water heater EF Dripping hot water side of faucet removes hot from water heater tank that is replaced with cold water that needs to be heated to set point, wasting water and the water needed for electric generation. Water is essential for generation of all electricity, for example cooling the coal-or-oil-or-gas-or-atomic generator, steam explosion powering the generator, hydroelectric generation. Some regions (South Texas for example) the rice crop was cancelled several years during the drought so there was enough water for the power plant and towns etc. PV solar generation does not require water during generation ... but making aluminum frames for solar panels requires smelting aluminum... requiring massive electric generation ... usually from hydroelectric plants in the NW. |
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 What
is water worth?Ordinary bath uses 20 gallons water... 17 hot, 3 cold. If you carry each gallon of water from the river up to 2nd floor bathtub, when would you start to conserve? Average home uses 1/4 to 1/2 acre-foot water per year. 135,000 gallons = 27,000 5-gallon buckets If each bath cost $30, would you conserve? Remember, conserving resources is 'conservative' Average home with water well pays $12 per year to pump water. Read about growth and electric consumption |
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Rain
barrel timer/ battery operated Toro zero pressure rain barrel timer Water timers cannot be exposed to freezing temperatures, or freezing water can expand and crack timer Buy: Toro low pressure rain barrel timer at Amazon Zero pressure Rain barrel timer Variable cycle timer instructions Set frequency... this is the number of times you want to water each week For example the timer can turn On once each 24 hours or once each 2 hours etc Then set duration of watering... this is amount of time the water will run ... choose from 1minute to 2 hours Resource: Toro manual |
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Rain
barrel collection system:
Buy: 55 gallon drum Bulkhead fitting For low impact land development and to meet LEED quaifications for sustainability: "install permanent infiltration or collection features (e.g., vegetated swale, rain garden, rainwater cistern) that can handle 100% of the runoff from a two-year, 24-hour storm": |
 Bulkhead fittingBuy: Bulkhead fittings Hole saw For 1/2" outlet pipe, drill size into barrel 1-1/4" using hole saw ... order 1/2" For 3/4 outlet pipe, drill size into barrel 1-5/8" ... order 3/4" 1" outlet ... drill 1-3/4" Come in brass and plastic/ max wall thickness of tank around 2" Sal with rubber gasket and flanged nut/ add silicone as needed. General pressure range for plastic up to 150 psi ... plenty good for designs shown on this page. Drill on a flat area of tank or barrel, near bottom, but not all the way at bottom so debris will not get into pipe. Outlets: There are solvent-weld and threaded types. | |
Pour bath water into rain barrel Bathtub uses 20-25 gallons water Use 5 gallon bucket to empty bathtub and pour into rain barrel 5 gallons x 8.4 lbs per gallon. I used closed-head 55 gallon barrel... cut hole in top, leaving 1" rim around top to attach hardware cloth and screen. Re-use water in garden and for grass and trees Pour in 2 pints hydrogen peroxide occasionally to deodorize Order 1" bulkhead fitting, and drill 2" hole, 1" IP thread Buy: Bulkhead fitting at Amazon Closed head 55 gallon plastic drum Open head 55 gallon plastic at Amazon |
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 Manual control using spring wound countdown timer. Buy: Plug in transformer/ power supply 24 volt plug in transformer IP67 power supply of LED driver Spring wound timer Low voltage wire Thermostat wire Transformer and timer cannot be exposed to weather. 20-100 watts or VA is plenty of power. I use the 200 watt 'waterproof' IP67 LED driver for more power and longer distance wire, and then splice a plug end onto wire ... and plug into GFCI-protected outlet. Install transformer or power supply inside structure or enclosure (box), install timer in surface-mounted box, and drill through wall for wire connection. Timer requires no electric power to operate. Simply rotate dial to select amount of time. Valves usually work with AC or DC. Use low voltage wire outdoor wire for best result, or thermostat wire or bell wire | |
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DIY rain
barrel water timer/ normally closed Normally closed valve: When Power is OFF, valve is Off When timer is ON, valve is open Buy: 3/4" / 12VDC/ plastic valve at Amazon 3/4" / 24VAC/ plastic valve at Amazon 12 Volt DC transformer/ 30 watt 24 Volt AC transformer / 40 watt 24 Volt AC transformer Resource Compare countdown timers |
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Rainbarrel
timer/ Normally closed with override Buy: 3/4" / 24VAC/ Orbit plastic valve Amazon 24 Volt AC transformer / 40 watt 24 Volt AC transformer w/ square box cover / 40 watt Orbit sprinkler valve transformer Orbit programmable sprinkler timer Compare countdown timers |
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Programmable wall timer 7-day and 24-hour timers can be used to control water valve Low wattage transformer will wirk fine. Buy: Programmable wall timers Resources: Compare programmable timer features How to wire timers |
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Transformers Convert 120 volt to 24 volt Choose 24 volt for solenoid valves Pay attention to wattage: Longer wires require more wattage VA rating means volt-amps, means watts Sprinkler valve requires low wattage/ 20 watts output is fine. Buy: Honeywell 24 volt 40 watt transformer Doorbell transformers 16-24 vac NuTone 8-16-24 volt transformer 20 watts |
 Water
Master timer with valveAA Battery operated programmable timer with valve Waterproof 2 programs with 4 start times for each 1-240 minutes "Programming frequencies can be days per week (Mon-Sun), Odd/Even, or interval (between 1-30 days)." Buy: WaterMaster Battery Operated Sprinkler Timer with Valve |
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Orbit
57894 timer and valveBuy: 3/4" / 24VAC/ Orbit plastic valve Amazon Orbit programmable sprinkler timer Orbit sprinkler timers Resource: Orbit 57894 manual |
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 T8845PV/
120volt
input / 24volt output/ no
rain sensor terminalsAll-in-one control Mechanical 24 hour dial timer, with fully repairable part replacement Not susceptible to surge event Outdoor enclosure Insert 156T1950A trippers on outer edge of yellow dial. Each tripper represents 15 minutes/ Set minimum 12 minutes- max 20 hours 45 minutes Insert four consecutive trippers for 1 hour of watering time. Buy T8845PV 120V input 24V output timer Replacement 156T1950A trippers Resources: T8845PV timer manual Add rain sensor to timer | |
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Additional
parts to connect with rainbarrel and hose Buy: Hose barbs Hose clamps 1/2" Brass nipples 1/2" pipe to hose thread adapter |
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Buy Electronic parts Industrial supplies Tools and home improvement Home and garden Hayward pool Pentair pool Southwire electric |
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Buy
Tools DEWALT Black and Decker Stanley SKIL Makita Porter-Cable Bosch Irwin Hand tools Klein hand tools Fluke electrical testing Dremel hobby tools Campbell Hausfeld air powered Tekton automotive Powerbuilt automotive Saws and saw blades |
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Resource: Compare box timers DPDT timers Intermatic Control water heater w/ Z-wave |
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Resource: Intermatic control centers: and parts Digital control centers and parts Tork control centers and parts Subpanels All control centers and parts Enclosures |
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Resource: Programmable timers Countdown timers Off delay timers On delay timers Timer modules Din rail Twin & one-shot Woods Intermatic Tork |
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Recirculation systems |
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