California has its own version of NFPA 25, which is enforced statewide.
Main Drain tests are annual only in the CA edition. They have lined through
the monthly requirement.  In addition, the State of California has its own
forms which are required whether electronic or paper.







*Bob Caputo, CFPS*

*President*

*American Fire Sprinkler Association*

c:     760-908-7753

p:

214-349-5965 ext124

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*From:* Brad Casterline <[email protected]>
*Sent:* Monday, September 26, 2022 11:35 AM
*To:* Discussion list on issues relating to automatic fire sprinklers <
[email protected]>
*Subject:* [Sprinklerforum] Re: [EXTERNAL] Re: Pressure on placard greater
that static.



Very interesting Bob, thanks!

How does Carlsbad address the requirement in 13 of quarterly Main Drain
Test for systems where the sole water supply has a BFP?

(The test includes fully open valve, steady flow, etc.)

There are other situations where a Main Drain Test is required also, e.g.,
after putting a system back in service.

Brad



*From:* Bob Caputo <[email protected]>
*Sent:* Monday, September 26, 2022 9:43 AM
*To:* Discussion list on issues relating to automatic fire sprinklers <
[email protected]>
*Subject:* [Sprinklerforum] Re: [EXTERNAL] Re: Pressure on placard greater
that static.



Brad,



Move to Carlsbad, CA.  They have multiple municipal pumps that come on line
as demand increases.  One would have to open 3 or more hydrants to get a
drop in pressure and during drought conditions (which is normal) someone
would likely arrest you if you opened any hydrant(s).  We normally get a
computer generated report or we take a static read and make believe we had
a 10% drop to predict the residual.



Just sayin’





[image: Image removed by sender.]

*Bob Caputo, CFPS*

*President*

*American Fire Sprinkler Association*

c:     760-908-7753

p:

214-349-5965 ext124

w:

firesprinkler.org

[image: Image removed by sender.]
<https://www.facebook.com/firesprinkler.org/>  [image: Image removed by
sender.] <https://twitter.com/afsa/status/1039528345367732224>  [image:
Image removed by sender.]
<https://www.linkedin.com/company/american-fire-sprinkler-association-afsa-/>
  [image: Image removed by sender.]
<https://www.instagram.com/firesprinklerorg/>



*Stronger Together - Your Membership Matters*



*Don’t miss another issue!*

Sign up to get your exclusive copy of the industry’s leading membership
magazine *Sprinkler Age* delivered straight to your mailbox, inbox, or
both! Subscribe <https://sprinklerage.com/subscribe> now to get the latest
information you need to know and never miss another issue.



*From:* Brad Casterline <[email protected]>
*Sent:* Monday, September 26, 2022 8:48 AM
*To:* Discussion list on issues relating to automatic fire sprinklers <
[email protected]>
*Subject:* [Sprinklerforum] Re: [EXTERNAL] Re: Pressure on placard greater
that static.



A Main Drain Test would be interesting if this was the case!

The pressure would drop as the valve is being opened, then at some point
start climbing.

Most ‘everyday’ system demands can be flowed out the Main Drain, especially
if it is 2”.

I’ve never seen or heard of a Main Drain Test where the residual is higher
than the static, but then, I don’t get out much.

I think step 1 in trouble shooting this water supply quandary is to verify
the gauge is working right.

I know we record Main Drain Tests to keep our eye on the water supply over
time, and nowadays we can use them to estimate the flow when exercising a
BFP.



Brad



*From:* Matthew J Willis <[email protected]>
*Sent:* Thursday, September 22, 2022 4:37 PM
*To:* Discussion list on issues relating to automatic fire sprinklers <
[email protected]>
*Subject:* [EXTERNAL] [Sprinklerforum] Re: Pressure on placard greater that
static.



Might be some city pumps kicking in you do not know about.



R/

Matt





*Matthew J. Willis, CWBSP*

Design Manager



*Rapid Fire Protection, Inc.*

600 E. Carlson St. Suite AB | Cheyenne, WY. 82009

Office (307) 426-4077 ext. 404

Direct (307) 316-6630

Cell (605) 391-2733





*From:* Fpdcdesign <[email protected]>
*Sent:* Thursday, September 22, 2022 2:23 PM
*To:* Discussion list on issues relating to automatic fire sprinklers <
[email protected]>
*Subject:* [Sprinklerforum] Pressure on placard greater that static.



I have run into a couple of situations where the required pressure as shown
on the system placard is less than the static pressure on the riser. I
found another one today during a survey. If others are finding this, how do
they handle it?



Todd G Williams, PE

Fire Protection Design/Consulting

Stonington, CT

860-535-2080 (ofc)

860-554-7054  (fax)

860-608-4559 (cell)
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