[Pumptesting] PROBLEM UPDATE - next step Aug 11 2025 - diagnostic test of fire pump tank float switch sensor

Sun Aug 10 20:10:33 EDT 2025

Don't worry, you can still join the fun too.

The pump tank sensor or something in the box with the controller for it is
messed up, causing it to always signal "refill me! I'm not up to 7 feet
yet!" ... Even when it's overfilled and dumping to the swale.

For now (since the water issue Saturday night) the tank sensor and
controller are again disconnected from both wall and battery power, because
when we reconnect them all of the fresh water dumps out of the freshwater
reservoir in less than half a day and then we have no water on site.

Except in the swale, that gets quite wet. Not very useful unless you're a
frog.

However we know that the fire pump tank level was maxed out because it
overflowed, so it hit just above 8 ft.

We also know no sprinklers have gone off so there is still plenty of water
in there.

We (or someone so may as well be pump testers plus Daver and Ryan), on
behalf of the Sawyer Hill trustees (especially while Adam is in Canada),
need to keep an eye on the level while the sensor is not working and the
autofill is disabled.

Next step will be tomorrow around ... I think we said 1:30 p.m.. DaveR and
I will disconnect the sensor from the controller so that we can test it
independently and see if it's totally blown or what.

Hopefully it is totally blown.

No really, that would be great because that would be a single specific
thing that we know needs to be replaced and would explain the bad behavior.

If the sensor seems fine then we have a problem in the Levcon controller or
the part of the box that the power comes through from the wall outlet. Ryan
tested the voltage at various points though and I don't think that side
component is faulty. It's only spitting out 10.2 volts to the control panel
but on closer inspection the control panel should be happy with anything
above 9 volts up to 24. We don't think it's the battery because that was
recently replaced and also was able to successfully take a charge on a
trickle charger when removed from the control panel. So most likely the
Levcon control panel itself or the float tank sensor.

The battery was behaving really strangely while connected to the
controller, but the leads to the terminals were loose and the connection
was bad which might be part of the battery draining. Maybe it also messed
up something in the controller that can get unmessed up. I'm not sure
exactly, but I don't think the new battery itself is the source of the
problem, I think it's just a symptom.

I'm not actually sure what our next step will be after testing the sensor,
but we are in the process of ruling out various possibly failed components
while still protecting both the fire suppression and freshwater systems.

Tara
508-361-9605

On Sunday, August 10, 2025, Courtney Lewis <courtney.d.lewis at gmail.com>
wrote:

> For some reason, all of these emails are just showing up in my email box
> now?
> Sorry you guys have been dealing with this all week
> Sent from my phone with the “help” of my two young ones
>
>
> On Aug 10, 2025, at 3:09 PM, Tara Halwes <tarahalwes at gmail.com> wrote:
>
> 
> After 2 days the battery is up from around 6V to around 8.5V. Still not
> 12V but I guess it's charging now? (And / or I don’t actually know how to
> use a multimeter)
>
> tank level display is still jumping around wildly, but went from a lower
> jumping range to a higher jumping range after I unplugged and then plug
> back in the battery charger. Still, the highest number I’ve seen flash on
> the screen is 6.7 and scrolling through the relay statuses, the auto fill
> should be going (and still is not). Based on DaveR's Prior troubleshooting
> guesses, I assume this could still be due to the battery not being
> sufficiently charged for that relay to successfully signal the solenoid
> it's supposed to talk to. we had hoped it would have come on by now, but we
> were also assuming that the battery would be back up to 12 V by now, so I
> believe the next step is either too immediately replace this battery or two
> continue letting it charge and check back to see if the tank fill line has
> been triggered by tomorrow or Sunday.
>
> I’m hoping to have provided enough detail here that any regular tester on
> this list could check on that if you're available this Sunday but if it’s
> not clear enough what I’m talking about please let me know.
>
>
> On Wed, Aug 6, 2025 at 17:18 Tara Halwes <tarahalwes at gmail.com> wrote:
>
>> The tank level was still reading low, fluctuating rapidly between around
>> 4.7 and 5.1 feet.DaveR came out and did a visual inspection, and we
>> measured it at approximately 6 feet, which means the sensor reading is
>> incorrect, but also the level is still low enough that the auto fill
>> solenoid should have triggered, and it very obviously was not running. So a
>> couple things need to happen in the next day or two.
>>
>> First is we need to give the battery on on the sensor panel time to
>> recharge. The battery was down to something like 6 V and should be at 12.
>> It’s fairly new. One of the terminal leads was extremely loose so that was
>> tightened and it is possible That will be enough to get it to charge
>> correctly. It is also possible that when it charges correctly, The other
>> issues will resolve, but in case they don’t:
>>
>> - Make sure the battery charged back up to 12 V
>> - Verify the auto fill triggered and the tank is back up to 8 feet, or at
>> least above 6.9.
>> - if it sounds like it’s filling, but the panel still reads low, visually
>> inspect the tank level. Also check for running water sounds in the great
>> behind unit number 80 as that would indicate it kept filling past 8 feet
>> which it should not do if the sensor is working correctly.
>> - Recalibrate the tank level sensor if it’s still reading incorrectly,
>> but the tank has filled back up. This procedure should be covered in the
>> manual above the control panel, but if not, DaveR can help.
>>
>> Default plan is Tara will do these things, but various medical
>> appointments might necessitate someone else stepping in to check on the
>> battery, etc.
>>
>> The rest of the test went fine and does not need to be redone until next
>> week. The system will come off of TEST in four minutes at 5:21 PM. I will
>> be unavailable for further troubleshooting this evening, but the battery
>> needs to charge anyway.
>>
>> Tara
>>
>> On Wed, Aug 6, 2025 at 14:51 Mike Gaisford <mgaisford at gmail.com> wrote:
>>
>>> I’m not been able to get back there to test. If you’re able to do it
>>> that would be great. Otherwise, I will try to do it tonight.
>>>
>>> On Wed, Aug 6, 2025 at 2:43 PM Tara Halwes <tarahalwes at gmail.com> wrote:
>>>
>>>> Hey Julius or Mike,
>>>>
>>>> Did you re-test? If you did, let me know soon? Otherwise I’ll attempt
>>>> it sometime in the next 2 hours and report back.
>>>>
>>>> I’m reachable by phone or SMS text to:
>>>> 508-361-9605
>>>>
>>>> Cheers!
>>>> Tara
>>>>
>>>> On Tue, Aug 5, 2025 at 12:37 Phéna Proxima <adam at phenaproxima.net>
>>>> wrote:
>>>>
>>>>>
>>>>> Mike asked if we should re-test. Per Daver:
>>>>>
>>>>> Yes, re-test as normal. If it keeps happening, try only opening the
>>>>> test valve enough to get a consistent drop in pressure.
>>>>>
>>>>>
>>>>> Any further questions, let me know. I will also document this
>>>>> conversation and its findings in the SH trustee manual.
>>>>> On Tuesday, August 5th, 2025 at 12:20 PM, Mike Gaisford <
>>>>> mgaisford at gmail.com> wrote:
>>>>>
>>>>> So is the direction to retest?
>>>>>
>>>>>
>>>>> On Tue, Aug 5, 2025 at 12:12 PM Phéna Proxima <adam at phenaproxima.net>
>>>>> wrote:
>>>>>
>>>>>> Update from Daver on the sensor issue:
>>>>>>
>>>>>> No need for Encore. What happened is that the waterflow sensor for
>>>>>> the building's own sprinkler system tripped. The waterflow sensor is near
>>>>>> the test valve. If there's a lot of turbulence in the pipes, that can fool
>>>>>> the sensor into thinking there's water flowing. Opening the test valve wide
>>>>>> open can make this more likely.
>>>>>>
>>>>>> It doesn't mean there's anything wrong. Just keep lowering the
>>>>>> pressure until it gets to 80 PSI and the main pump turns on.
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Pumptesting mailing list
>>>>>> Pumptesting at lists.sawyerhill.org
>>>>>> http://lists.sawyerhill.org/mailman/listinfo/pumptesting
>>>>>>
>>>>>
>>>>> _______________________________________________
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>>>>> Pumptesting at lists.sawyerhill.org
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>>>>>
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