IP Library Granted Patent US 12,655,849
Granted Patent B2
US 12,655,849 · App. 19/072,473 · Granted Jun 16, 2026

Determining and utilizing a desired frequency for a mechanical shaker for a sump pump system

Inventors: Nathan L. Tofte (Downs, IL); Jonathan Christopher Hull (Bloomington, IL); John R. Donovan (Bloomington, IL); Richard Jan Tjaden (Bloomington, IL)
Assignee: STATE FARM MUTUAL AUTOMOBILE INSURANCE COMPANY
F04D15/0227F04D13/08F04D13/086F04D13/12F04D15/0077F04D15/0088F04D15/0209F04D15/0218F04D15/0254F04D15/0272G05B13/021G05B13/026G05B13/0265G05B15/02G05D9/12G06F3/0481G06F3/04842G06N20/00G08B21/182H04L12/282H04L12/2823G01M1/22G01M13/045
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,655,849
App. No.
19/072,473
Granted
Jun 16, 2026
Kind
B2
Abstract

A sump pump system enables automatic determination and utilization of frequencies for mechanical shakers for sump pumps. These techniques may be implemented to detect a fault (e.g., a stuck impeller) with a sump pump and to identify a desirable frequency at which a mechanical shaker for the sump pump should vibrate to correct the fault.

Claims (46)

1 . A sump pump system configured to automatically determine and utilize frequencies for mechanical shakers, the sump pump system comprising:

a sump pump;

a sensor;

a mechanical shaker;

a sump pump control system coupled to the sump pump, the sensor, and the mechanical shaker, wherein the sump pump control system is configured to:

detect a fault with the sump pump;

activate the mechanical shaker;

collect acceleration data representing acceleration caused by the mechanical shaker detected via the sensor;

detect a desired acceleration pattern corresponding to a correction of the fault; and

deactivate the mechanical shaker.

2 . The sump pump system of claim 1 , wherein the sensor is configured to be disposed on the sump pump to detect acceleration when the sump pump vibrates or on an outlet pipe to detect acceleration when the outlet pipe vibrates, the outlet pipe configured to pump water out of a sump basin in which the sump pump is disposed, and wherein the desired acceleration pattern indicates the sump pump or outlet pipe is vibrating in a manner consistent with water flowing through the sump pump and out of the outlet pipe.

3 . The sump pump system of claim 1 , wherein the sensor is configured to be disposed on or within water in a sump basin in which the sump pump is disposed to detect acceleration in response to movement of the water; and wherein the desired acceleration pattern indicates a level of water in the sump basin is dropping.

4 . The sump pump system of claim 1 , wherein the fault is a stuck impeller.

5 . The sump pump system of claim 1 , wherein the fault is a blockage of an outlet pipe.

6 . The sump pump system of claim 1 , wherein the fault is a stuck level sensor that the sump pump utilizes to detect a high-water mark at which it activates.

7 . A method for automatically determining and utilizing frequencies for mechanical shakers, the method comprising:

detecting, via a sump pump control system, a fault with a sump pump;

activating, via the sump pump control system, a mechanical shaker;

collecting, via the sump pump control system, acceleration data representing acceleration caused by the mechanical shaker detected via a sensor;

detecting, via the sump pump control system, a desired acceleration pattern; and

deactivating, via the sump pump control system, the mechanical shaker.

8 . The method of claim 7 , wherein the sensor is configured to be coupled to the sump pump control system and disposed on the sump pump to detect acceleration when the sump pump vibrates or on an outlet pipe to detect acceleration when the outlet pipe vibrates, the outlet pipe configured to pump water out of a sump basin in which the sump pump is disposed, and wherein the desired acceleration pattern indicates the sump pump or the outlet pipe is vibrating in a manner consistent with water flowing through the sump pump and out of the outlet pipe.

9 . The method of claim 7 , wherein the sensor is configured to be disposed on or within water in a sump basin in which the sump pump is disposed to detect acceleration in response to movement of the water; and wherein the desired acceleration pattern indicates a level of water in the sump basin is dropping.

10 . The method of claim 7 , wherein the fault is a stuck impeller.

11 . The method of claim 7 , wherein the fault is a blockage of an outlet pipe.

12 . The method of claim 7 , wherein the fault is a stuck level sensor that the sump pump utilizes to detect a high-water mark at which it activates.

13 . A method for automatically determining and utilizing frequencies for mechanical shakers, the method comprising:

detecting, via a sump pump control system, a fault with a sump pump;

responding, via the sump pump control system, to detecting the fault by:

(i) detecting, via a sensor configured to detect acceleration, a current acceleration pattern;

(ii) detecting, within a set of known relationships, a suggested frequency corresponding to a known acceleration pattern; and

(iii) activating a mechanical shaker configured to shake according to a frequency variable, to shake at the suggested frequency, to thereby shake the sump pump in an attempt to correct the fault.

14 . The method of claim 13 , wherein responding, via the sump pump control system, to detecting the fault further comprises by:

analyzing the set of known relationships between known acceleration patterns, known faults, and suggested frequencies to identify the known acceleration pattern corresponding to the current acceleration pattern after detecting, via the sensor configured to detect acceleration, current acceleration pattern.

15 . The method of claim 13 , further comprising detecting that activating the mechanical shaker at the suggested frequency one of: (1) corrected the fault; or (2) did not correct the fault.

16 . The method of claim 15 , further comprising generating an alarm in response to detecting that the fault was not corrected.

17 . The method of claim 15 , further comprising responding to detecting that the fault was not corrected by: (i) analyzing the set of known relationships to identify a second known acceleration pattern that is the next mostly closely corresponding to the current acceleration pattern; (ii) detecting, within the set of known relationships, a second suggested frequency corresponding to the second known acceleration pattern; and (iii) causing the mechanical shaker to shake at the second suggested frequency.

18 . The method of claim 15 , further comprising responding to detecting that the fault was not corrected by ramping up or down the frequency for the mechanical shaker.

19 . The method of claim 18 , further comprising:

(i) analyzing the set of known relationships to identify a second known acceleration pattern that is the next mostly closely corresponding to the current acceleration pattern;

(ii) detecting, within the set of known relationships, a second suggested frequency corresponding to the second known acceleration pattern;

(iii) ramping the frequency up when the second suggested frequency is higher than the current suggested frequency; and

(iv) ramping the frequency down when the second suggested frequency is lower than the current suggested frequency.

20 . The method of claim 18 , further comprising:

while the sump pump control system is ramping the frequency up or down: (i) collecting acceleration data representing acceleration detected via the sensor, and (ii) detect, based on an analysis of the collected acceleration data, a desired acceleration pattern corresponding to a correction of the fault; and

responding to detecting the desired acceleration pattern by deactivating the mechanical shaker.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 12, 2025
From: TOFTE, NATHAN L.; HULL, JONATHAN CHRISTOPHER; DONOVAN, JOHN; TJADEN, RICHARD JAN
To: STATE FARM MUTUAL AUTOMOBILE INSURANCE COMPANY
Reel/Frame 070484/0119 →
Continuity (11)
Continuation 18656379 · May 6, 2024
Continuation 18118641 · Mar 7, 2023
Continuation 17245689 · Apr 30, 2021
Provisional Application 63148885 · Feb 12, 2021
Provisional Application 63148880 · Feb 12, 2021
Provisional Application 63148894 · Feb 12, 2021
Provisional Application 63148926 · Feb 12, 2021
Provisional Application 63148783 · Feb 12, 2021
Provisional Application 63148923 · Feb 12, 2021
Provisional Application 63148909 · Feb 12, 2021
Related Publication 20250198415A1 · Jun 19, 2025
References Cited (228)
US 4624280A · DePirro · 1986 [cited by applicant]
US 5591010A · van Zyl · 1997 [cited by applicant]
US 5672050A · Webber et al. · 1997 [cited by applicant]
US 6167965B1 · Bearden et al. · 2001 [cited by applicant]
US 6330525B1 · Hays et al. · 2001 [cited by applicant]
US 6676382B2 · Leighton et al. · 2004 [cited by applicant]
US 7309216B1 · Spadola, Jr. et al. · 2007 [cited by applicant]
US 7539549B1 · Discenzo et al. · 2009 [cited by applicant]
US 8380355B2 · Mayleben et al. · 2013 [cited by applicant]
US 8490006B1 · Reeser et al. · 2013 [cited by applicant]
US 8527306B1 · Reeser et al. · 2013 [cited by applicant]
US 8533144B1 · Reeser et al. · 2013 [cited by applicant]
US 8640038B1 · Reeser et al. · 2014 [cited by applicant]
US 8665084B2 · Shapiro et al. · 2014 [cited by applicant]
US 8890680B2 · Reeser et al. · 2014 [cited by applicant]
US 8892263B1 · Morris et al. · 2014 [cited by applicant]
US 8917186B1 · Grant · 2014 [cited by applicant]
US 8976937B2 · Shapiro et al. · 2015 [cited by applicant]
US 9049168B2 · Jacob et al. · 2015 [cited by applicant]
US 9057746B1 · Houlette et al. · 2015 [cited by applicant]
US 9117349B2 · Shapiro et al. · 2015 [cited by applicant]
US 9142119B1 · Grant · 2015 [cited by applicant]
US 9152737B1 · Micali et al. · 2015 [cited by applicant]
US 9183578B1 · Reeser et al. · 2015 [cited by applicant]
US 9202363B1 · Grant · 2015 [cited by applicant]
US 9262909B1 · Grant · 2016 [cited by applicant]
US 9274530B1 · Morris · 2016 [cited by applicant]
US 9286772B2 · Shapiro et al. · 2016 [cited by applicant]
US 9344330B2 · Jacob et al. · 2016 [cited by applicant]
US 9424737B2 · Bailey et al. · 2016 [cited by applicant]
US 9443195B2 · Micali et al. · 2016 [cited by applicant]
US 9472092B1 · Grant · 2016 [cited by applicant]
US 9589441B2 · Shapiro et al. · 2017 [cited by applicant]
US 9609003B1 · Chmielewski et al. · 2017 [cited by applicant]
US 9665892B1 · Reeser et al. · 2017 [cited by applicant]
US 9666060B2 · Reeser et al. · 2017 [cited by applicant]
US 9699529B1 · Petri et al. · 2017 [cited by applicant]
US 9739813B2 · Houlette et al. · 2017 [cited by applicant]
US 9786158B2 · Beaver et al. · 2017 [cited by applicant]
US 9798979B2 · Fadell et al. · 2017 [cited by applicant]
US 9798993B2 · Payne et al. · 2017 [cited by applicant]
US 9800570B1 · Bleisch · 2017 [cited by applicant]
US 9800958B1 · Petri et al. · 2017 [cited by applicant]
US 9812001B1 · Grant · 2017 [cited by applicant]
US 9888371B1 · Jacob · 2018 [cited by applicant]
US 9892463B1 · Hakimi-Boushehri et al. · 2018 [cited by applicant]
US 9898168B2 · Shapiro et al. · 2018 [cited by applicant]
US 9898912B1 · Jordan, II et al. · 2018 [cited by applicant]
US 9911042B1 · Cardona et al. · 2018 [cited by applicant]
US 9923971B2 · Madey et al. · 2018 [cited by applicant]
US 9942630B1 · Petri et al. · 2018 [cited by applicant]
US 9947202B1 · Moon et al. · 2018 [cited by applicant]
US 9978033B1 · Payne et al. · 2018 [cited by applicant]
US 9997056B2 · Bleisch · 2018 [cited by applicant]
US 10002295B1 · Cardona et al. · 2018 [cited by applicant]
US 10042341B1 · Jacob · 2018 [cited by applicant]
US 10047974B1 · Riblet et al. · 2018 [cited by applicant]
US 10055793B1 · Call et al. · 2018 [cited by applicant]
US 10055803B2 · Orduna et al. · 2018 [cited by applicant]
US 10057664B1 · Moon et al. · 2018 [cited by applicant]
US 10073929B2 · Vaynriber et al. · 2018 [cited by applicant]
US 10102584B1 · Devereaux et al. · 2018 [cited by applicant]
US 10102585B1 · Bryant et al. · 2018 [cited by applicant]
US 10107708B1 · Schick et al. · 2018 [cited by applicant]
US 10112222B1 · Davis et al. · 2018 [cited by applicant]
US 10142394B2 · Chmielewski et al. · 2018 [cited by applicant]
US 10176705B1 · Grant · 2019 [cited by applicant]
US 10181160B1 · Hakimi-Boushehri et al. · 2019 [cited by applicant]
US 10186134B1 · Moon et al. · 2019 [cited by applicant]
US 10193546B1 · Long · 2019 [cited by applicant]
US 10198771B1 · Madigan et al. · 2019 [cited by applicant]
US 10217068B1 · Davis et al. · 2019 [cited by applicant]
US 10229394B1 · Davis et al. · 2019 [cited by applicant]
US 10244294B1 · Moon et al. · 2019 [cited by applicant]
US 10249158B1 · Jordan, II et al. · 2019 [cited by applicant]
US 10282787B1 · Hakimi-Boushehri et al. · 2019 [cited by applicant]
US 10282788B1 · Jordan, II et al. · 2019 [cited by applicant]
US 10282961B1 · Jordan, II et al. · 2019 [cited by applicant]
US 10295431B1 · Schick et al. · 2019 [cited by applicant]
US 10296978B1 · Corder et al. · 2019 [cited by applicant]
US 10297138B2 · Reeser et al. · 2019 [cited by applicant]
US 10304313B1 · Moon et al. · 2019 [cited by applicant]
US 10323860B1 · Riblet et al. · 2019 [cited by applicant]
US 10325473B1 · Moon et al. · 2019 [cited by applicant]
US 10332059B2 · Matsuoka et al. · 2019 [cited by applicant]
US 10346811B1 · Jordan, II et al. · 2019 [cited by applicant]
US 10353359B1 · Jordan, II et al. · 2019 [cited by applicant]
US 10356303B1 · Jordan, II et al. · 2019 [cited by applicant]
US 10387966B1 · Shah et al. · 2019 [cited by applicant]
US 10388135B1 · Jordan, II et al. · 2019 [cited by applicant]
US 10412169B1 · Madey et al. · 2019 [cited by applicant]
US 10446000B2 · Friar et al. · 2019 [cited by applicant]
US 10467476B1 · Cardona et al. · 2019 [cited by applicant]
US 10469282B1 · Konrardy et al. · 2019 [cited by applicant]
US 10480825B1 · Riblet et al. · 2019 [cited by applicant]
US 10482746B1 · Moon et al. · 2019 [cited by applicant]
US 10506411B1 · Jacob · 2019 [cited by applicant]
US 10514669B1 · Call et al. · 2019 [cited by applicant]
US 10515372B1 · Jordan, II et al. · 2019 [cited by applicant]
US 10522009B1 · Jordan, II et al. · 2019 [cited by applicant]
US 10546478B1 · Moon et al. · 2020 [cited by applicant]
US 10547918B1 · Moon et al. · 2020 [cited by applicant]
US 10565541B2 · Payne et al. · 2020 [cited by applicant]
US 10573146B1 · Jordan, II et al. · 2020 [cited by applicant]
US 10573149B1 · Jordan, II et al. · 2020 [cited by applicant]
US 10579028B1 · Jacob · 2020 [cited by applicant]
US 10586177B1 · Choueiter et al. · 2020 [cited by applicant]
US 10607295B1 · Hakimi-Boushehri et al. · 2020 [cited by applicant]
US 10634576B1 · Schick et al. · 2020 [cited by applicant]
US 10664922B1 · Madigan et al. · 2020 [cited by applicant]
US 10679292B1 · Call et al. · 2020 [cited by applicant]
US 10685402B1 · Bryant et al. · 2020 [cited by applicant]
US 10699346B1 · Corder et al. · 2020 [cited by applicant]
US 10699348B1 · Devereaux et al. · 2020 [cited by applicant]
US 10726494B1 · Shah et al. · 2020 [cited by applicant]
US 10726500B1 · Shah et al. · 2020 [cited by applicant]
US 10733671B1 · Hakimi-Boushehri et al. · 2020 [cited by applicant]
US 10733868B2 · Moon et al. · 2020 [cited by applicant]
US 10735829B2 · Petri et al. · 2020 [cited by applicant]
US 10740691B2 · Choueiter et al. · 2020 [cited by applicant]
US 10741033B1 · Jordan et al. · 2020 [cited by applicant]
US 10750252B2 · Petri et al. · 2020 [cited by applicant]
US 10795329B1 · Jordan et al. · 2020 [cited by applicant]
US 10796557B2 · Sundermeyer et al. · 2020 [cited by applicant]
US 10802477B1 · Konrardy et al. · 2020 [cited by applicant]
US 10804700B2 · Cohen et al. · 2020 [cited by applicant]
US 10818105B1 · Konrardy et al. · 2020 [cited by applicant]
US 10823458B1 · Riblet et al. · 2020 [cited by applicant]
US 10824971B1 · Davis et al. · 2020 [cited by applicant]
US 10825320B1 · Moon et al. · 2020 [cited by applicant]
US 10825321B2 · Moon et al. · 2020 [cited by applicant]
US 10832225B1 · Davis et al. · 2020 [cited by applicant]
US 10846800B1 · Bryant et al. · 2020 [cited by applicant]
US 10907844B2 · Ribbich et al. · 2021 [cited by applicant]
US 10922756B1 · Call et al. · 2021 [cited by applicant]
US 10922948B1 · Moon et al. · 2021 [cited by applicant]
US 10943447B1 · Jordan, II et al. · 2021 [cited by applicant]
US 10970990B1 · Jacob · 2021 [cited by applicant]
US 10990069B1 · Jacob · 2021 [cited by applicant]
US 11003334B1 · Conway et al. · 2021 [cited by applicant]
US 11004320B1 · Jordan, II et al. · 2021 [cited by applicant]
US 11015997B1 · Schick et al. · 2021 [cited by applicant]
US 11017480B2 · Shah et al. · 2021 [cited by applicant]
US 11042137B1 · Call et al. · 2021 [cited by applicant]
US 11042942B1 · Hakimi-Boushehri et al. · 2021 [cited by applicant]
US 11043098B1 · Jordan, II et al. · 2021 [cited by applicant]
US 11049078B1 · Jordan, II et al. · 2021 [cited by applicant]
US 11049189B2 · Shah et al. · 2021 [cited by applicant]
US 11074659B1 · Hakimi-Boushehri et al. · 2021 [cited by applicant]
US 11100594B1 · West et al. · 2021 [cited by applicant]
US 11118812B1 · Riblet et al. · 2021 [cited by applicant]
US 11126708B2 · Reimer · 2021 [cited by applicant]
US 11164257B1 · Devereaux et al. · 2021 [cited by applicant]
US 11232873B1 · Aspro et al. · 2022 [cited by applicant]
US 11277465B2 · Chmielewski et al. · 2022 [cited by applicant]
US 11348193B1 · Konrardy et al. · 2022 [cited by applicant]
US 11417212B1 · Farooqui et al. · 2022 [cited by applicant]
US 11788535B1 · Tofte et al. · 2023 [cited by applicant]
US 20030049134A1 · Leighton et al. · 2003 [cited by applicant]
US 20040064012A1 · Yanai · 2004 [cited by applicant]
US 20040090197A1 · Schuchmann · 2004 [cited by applicant]
US 20040221647A1 · Sabatino · 2004 [cited by applicant]
US 20070239371A1 · Halbinger et al. · 2007 [cited by applicant]
US 20080229819A1 · Mayleben et al. · 2008 [cited by applicant]
US 20090074338A1 · Hagshenas et al. · 2009 [cited by applicant]
US 20090123295A1 · Abbott · 2009 [cited by applicant]
US 20090265193A1 · Collins et al. · 2009 [cited by applicant]
US 20110077875A1 · Tran et al. · 2011 [cited by applicant]
US 20110110794A1 · Mayleben et al. · 2011 [cited by applicant]
US 20110156921A1 · Kyllingstad · 2011 [cited by applicant]
US 20120260729A1 · Bayley et al. · 2012 [cited by applicant]
US 20130197700A1 · Kochan et al. · 2013 [cited by applicant]
US 20140202243A1 · Leonard et al. · 2014 [cited by applicant]
US 20140266669A1 · Fadell et al. · 2014 [cited by applicant]
US 20140343736A1 · Meyer · 2014 [cited by applicant]
US 20150061859A1 · Matsuoka et al. · 2015 [cited by applicant]
US 20150253216A1 · Shinoda et al. · 2015 [cited by applicant]
US 20150347910A1 · Fadell et al. · 2015 [cited by applicant]
US 20150377692A1 · Cooper · 2015 [cited by applicant]
US 20160076535A1 · Clifton et al. · 2016 [cited by applicant]
US 20160333884A1 · Hussain et al. · 2016 [cited by applicant]
US 20170075363A1 · Steinke · 2017 [cited by applicant]
US 20170100632A1 · Castelo Branco et al. · 2017 [cited by applicant]
US 20170107989A1 · Coste · 2017 [cited by applicant]
US 20170179724A1 · Lam · 2017 [cited by applicant]
US 20170322104A1 · Mataga et al. · 2017 [cited by applicant]
US 20170335550A1 · Sterling et al. · 2017 [cited by applicant]
US 20170342812A1 · Kuhn · 2017 [cited by applicant]
US 20180072384A1 · von Mueller · 2018 [cited by applicant]
US 20180141069A1 · Lemkin · 2018 [cited by applicant]
US 20180168119A1 · Hartfelder et al. · 2018 [cited by applicant]
US 20180223863A1 · Weber et al. · 2018 [cited by applicant]
US 20180247513A1 · Calvert et al. · 2018 [cited by applicant]
US 20180363639A1 · Cathell et al. · 2018 [cited by applicant]
US 20180375680A1 · Wright et al. · 2018 [cited by applicant]
US 20190101427A1 · Beger et al. · 2019 [cited by applicant]
US 20190167059A1 · Brown et al. · 2019 [cited by applicant]
US 20190203736A1 · Hambe et al. · 2019 [cited by applicant]
US 20190242374A1 · Guetter · 2019 [cited by applicant]
US 20190251520A1 · Bentley, III et al. · 2019 [cited by applicant]
US 20190353156A1 · Ward et al. · 2019 [cited by applicant]
US 20200003217A1 · Wilds · 2020 [cited by applicant]
US 20200023395A1 · Tangen et al. · 2020 [cited by applicant]
US 20200240418A1 · Correia · 2020 [cited by applicant]
US 20200302549A1 · Jordan, II et al. · 2020 [cited by applicant]
US 20200327791A1 · Moon et al. · 2020 [cited by applicant]
US 20210035432A1 · Moon et al. · 2021 [cited by applicant]
US 20210042843A1 · Bryant et al. · 2021 [cited by applicant]
US 20210158671A1 · Jordan, II et al. · 2021 [cited by applicant]
US 20210262185A1 · Adler et al. · 2021 [cited by applicant]
US 20210279811A1 · Waltman et al. · 2021 [cited by applicant]
US 20210312789A1 · Linn · 2021 [cited by applicant]
US 20220101275A1 · Aspro et al. · 2022 [cited by applicant]
CN 111626536A · 2020 [cited by applicant]
CN 113138558A · 2021 [cited by applicant]
JP 2003157357A · 2003 [cited by applicant]
KR 20150129845A · 2015 [cited by applicant]
WO WO2014159131A2 · 2014 [cited by applicant]
WO WO2016081511A2 · 2016 [cited by applicant]
WO WO2017173463A1 · 2017 [cited by applicant]
WO WO2021087185A1 · 2021 [cited by applicant]
Adafruit, “Assembled Adafruit HUZZAH32-ESP32 Feather Board—with Stacking Headers,” Retrieved from the Internet at: <https://www.adafruit.com/product/3619> on Apr. 26, 2021. [cited by applicant]
APG, Automation Products Group, Inc., “5 Tips on Using an Ultrasonic Level Sensor in a Lift Station,” Retrieved from the Internet at: <http://romtecutilities.com/pressure-transducers-for-pump-lift-stations/> on Apr. 26,… [cited by applicant]
Flowline™, “Municipal Sewer Pump Station Radar Level Sensor,” Retrieved from the Internet at: <https://www.flowline.com/municipal-sewer-lift-station-radar-level-transmitter/> on Apr. 26, 2021. [cited by applicant]
LevelGuard, Fluid Control Products, “Reliable Liquid Level Sensing Solutions,” Retrieved from the Internet at: <https://www.levelguardproducts.com/> on Apr. 26, 2021. [cited by applicant]
Romtec Utilities, “Pressure Transducers for Pump & Lift Stations,” Retrieved from the Internet at: <https://www.flowline.com/municipal-sewer-lift-station-radar-level-transmitter/> on Apr. 26, 2021. [cited by applicant]
The Basement Watchdog, “Connected Pumps,” Retrieved from the Internet at: <https://www.adafruit.com/product/3619> on Apr. 26, 2021. [cited by applicant]
The Home Depot, “1/2 HP Submersible 12-Volt DC WiFi Connected Battery Backup Sump Pump and Monitoring System,” Retrieved from the Internet at: <https://www.homedepot.com/p/PumpSpy-1-2-HP-Submersible-12-Volt-DC-WiFi-Conn… [cited by applicant]