We have a house (single family home) that will require an NFPA 13D system, but it is not going to be connected to city water.
There is a well onsite. The well completion report does not provide a pressure or flow output.
Can the well be used as part of the hydraulic calculations? What data would be necessary to incorporate it?
If not, I'm assuming that both a pump and tank would be needed here for the 13D system?
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4/26/2022 06:45:08 am
4/26/2022 08:10:37 am
We have done a handful of these with similar issues. Alex is correct.
4/26/2022 10:02:26 am
We have installed many 13D projects with private well pumps. A large majority of private well pumps will not produce the required flow unless the well pump is a variable speed pump.
4/26/2022 10:25:53 am
Like Joe above, I've designed many 13D's supplied by a private well, if it could provide the supply and duration. Sometimes keeping sprinkler spacing at a minimum, once in a while get lucky and not have a compartment with more than one sprinkler. Often had to upgrade the well pump itself, or catch it early if a new well. But I prefer the pre-packaged 13D units if it's in the budget and there's space for it. As you know often the uninformed owner is already angry at having to install a system at all.
4/26/2022 10:59:12 am
As an AHJ, all of the others are on the mark. I also emplore you to have a discussion with your local AHJ and find out what specific requirements that they have regarding rural supplied 13D systems.
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