[RE-wrenches] Fire Sprinklers (was Re: Cell phone based relay control)

[Ray Walters]

I decided to make this a 2nd thread, so as not to high jack the original 
theme.

I have a question: it sounds like you are not spraying the roof, because 
its metal?  Isn't the plywood and rafters still vulnerable underneath 
the metal, or no? I'm concerned with large hot embers.

Can you post a couple pics of your sprayer install?

2nd question:  what are the field results of these systems in actual fires?

Thanks,

Ray

On 3/14/2023 10:03 AM, Todd Cory via RE-wrenches wrote:
>
> I can help with this as Michael built something similar to what I 
> designed and installed in 2001:
>
> I plumbed small irrigation sprayers every ~15' around the perimeter of 
> my buildingsunder the eaves. This wets down the perimeter of the 
> structures, particularly the combustion zone where the building meets 
> the ground. Roof mounted sprayers leave a vulnerable dry gap between 
> the drip edge and the building. Under eave sprayers wet this area and 
> the siding.
>
> I have 40 of these sprayers which maxes out my well pump at 35 PSI/~15 
> gallons a minute creating a rainstorm of water around the 8 buildings 
> they are plumbed on. My GVFX-3648 is easily capable of operating the 
> well pump during a grid outage.
>
> I also have window shutters and metal roofs.
>
> I use this to activate the solenoid valve from my phone if I am gone:
>
> https://www.amazon.com/gp/product/B06X6NBDFW
>
> It is controlled by this phone application:
> https://ewelink.cc/
> <https://ewelink.cc/>
> It is perplexing why Cal Fire and others do not test and recommend 
> these kinds of systems. The best answer I have been able to come up 
> with is they fear people prepared like this would have a tendency to 
> "stay and defend" their homes rather than evacuating.
>
> Todd
>
>
>
>
> On Monday, March 13, 2023 6:37pm, "Ray Walters via RE-wrenches" 
> <re-wrenches at lists.re-wrenches.org> said:
>
> Michael;
>
> Can you share more about your sprinkler system and the power supply 
> for it?  Over the years, at least two of my customers have lost their 
> homes (and PV arrays) in wild fires.
>
> Ray Walters
> Remote Solar
>
> On 3/13/2023 2:34 PM, Michael Morningstar via RE-wrenches wrote:
>
>     WebRelay. I use one to turn off my WEEDS (Wind Enabled Ember
>     Dousing System) sprinkler system via a 12V solenoid
>
>
>
>
> Sent from Finest Planet WebMail.
>
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