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Pretty self explanatory, would look like the decorative fountains you see around resorts and casinos. A series of hundreds of sprayers around the house's perimeter create a wall of water which falls back to the ground through a grid that directs it back to the self contained pump.
The system would
be fed from an underground tank on the premises so as not to rely on city water that might be disrupted in a large fire. Filters would take out any particulate matter, ash from surrounding houses, trees etc. Would have diesel or battery backup power obviously to stay self contained and operational during any loss of utilities.
They would be tilted inwards making a pyramid shape and recycling the water as it pours down over the house.
A simpler but less effective system might be a single sprayer on the roof on the middle of the house which they already have, but using the same recycling system and storage tank.
I'd rather have the water wall pyramid myself though. Could have multiple pumps for redundancy as well.
You'd want to put new water in they system from time to time which would give you the bonus of cleaning the whole exterior of the house.
Another bonus is you could just turn on one section here or there for decorative purposes.
Like this.
https://images.app....l/LEsCAXCfXPG7obqq5
[doctorremulac3, Jan 27 2025]
Applied like this.
https://www.dropbox...8l&st=gre82dlo&dl=0
[doctorremulac3, Jan 27 2025]
Another example.
https://www.dropbox...5s&st=jqw3jhsh&dl=0
They'd be pointing more inwards though. [doctorremulac3, Jan 27 2025]
Some advice from the State of Victoria.
https://www.cfa.vic...20(Version%202).pdf
See page 22, item 4. [pertinax, Jan 29 2025]
Fire Protection in Japan
https://www.youtube...watch?v=Pf9ax-QWypw
[xenzag, Jan 29 2025]
[link]
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Obviously, on a property that has a swimming pool you don’t need the cistern. |
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I think I'd also add scaled down systems where you could have as few as one animated sprayer on each side that moves back and forth and covers that side of the house. I'd also program it such that it would hit the roof and exterior walls separately so the rain gutters on the roof wouldn't prevent water from running down the walls. I'd then have a simple rain gutter around the perimeter of the structure that would catch the water and stream it back to the filter/pump system. Might even have a simplified animated sprayer where it cycles through multiple nozzles aimed at separate sections. No high tech needed. |
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I'd also have a smaller retrofit system that uses existing rooftop sprinklers, but has all the water going into the existing roof perimeter rain gutters fed back to the recycled water pump system. |
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And those rain gutters would feed the cistern when it rains, again, not depending on city water and at least augmenting the fire protection water supply. |
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What we do in Australia is, block each downpipe with a tennis ball, and then fill the gutters with water from a hose. There aren't so many moving parts that way. Remember, the role of water in fighting the fire is to rob the fire of energy by subtracting the phase-change energy of the water as it evaporates. For a serious fire, you don't want a sprinkling - you want a significant mass of water, and you want it at a height, because the fire often starts with a wind-blown fragment landing on the roof. Also, you don't want a system which fails completely as soon as the power to the pumps is cut off. See link. |
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Luckily, I've never had to do this myself. |
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Love it! Simpler is always much much better. |
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I'm thinking with the gutter system and sprinklers hitting the roof, you could also have a series of notches spaced that when you pump the water back from the rain harvesting system back INTO the gutters, it would fill to the brim and flow through the notches facing the wall side of the gutter and you'd get a nice even spread of water over those exterior walls. |
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And instead of sprinklers, just have a pipe on the roof peaks with holes on either side so you get a nice waterfall on all the roof surfaces. Again, simpler is better and the wind doesn't redirect the water as much. |
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baked by the Japanese... see link |
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//A simpler but less effective system might be a single sprayer on the roof on the middle of the house which they already have, but using the same recycling system and storage tank.// |
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This is a water wall utilizing existing infrastructure elements such as modifications to the rain gutters and pointedly, having the water hit the structure as a waterfall, not a spray of water that's gonna get blown away. |
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Pert, holy cow! I just downloaded your link, it's basically the bible for fire prevention. Thank you for that. |
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I think I need to zero in on the flow rather than throw approach. I think as you pointed out, a spray system susceptible to high winds is asking for trouble. |
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