Grinder pump installation
Grinder pump installation puts a complete sewage grinder pump system in the ground: tank, pump, control panel with alarm, check valve and anti-siphon device, and the small pressure line to the utility's connection at the property line. Grinder Pump Gents installs residential grinder pump systems for new construction, additions and septic-to-sewer connections wherever the utility lets the owner's plumber do the work.
That means Fairhope, Gulf Shores Utilities, Riviera's Foley customers, North Baldwin, Loxley, Daphne and MAWSS. Baldwin County Sewer Service has installed every new pump on its own system itself from January 1, 2026, and in Orange Beach the city code reserves installation to the city. On those two systems we can advise and repair but not install.
Plate VI. A new pump is lowered with the care usually reserved for heirs.
- Owner-run: Brandon Byrd does the work
- Alabama master plumber MP-4462
- More than a decade on grinder pumps
- You see the failed part before any repair is agreed
- Emergency line open 24/7: (251) 850-8031
When a house needs a grinder pump
A gravity sewer needs the house drain to sit above the main. Where it does not, because the lot is low, the main is a small-diameter pressure line, or the house is being connected to sewer from septic, a grinder station is the usual answer. Fairhope's code requires a gravity sewer unless the water and sewer superintendent specifically approves a grinder system, so the first step there is that approval. Daphne does not accept multi-home low-pressure systems without Daphne Utilities' approval. Riviera accepts both grinder stations and septic tank effluent (STEP) systems on its low-pressure sewer in Foley.
What a residential grinder pump system includes
The components, sizes and installation requirements depend on the model and utility.
- A tank, 70 gallons on an E-One DH071, 100 gallons on a current E-One WH101, 24 by 60 inches on a BCSS Keen station, and at least 115 gallons on Gulf Shores Utilities or in Orange Beach and 150 gallons in Foley.
- The pump, chosen to the utility's head and flow requirement: 7 gallons a minute at 185 feet in North Baldwin and Loxley, 10 gallons a minute at 90 feet with 2 horsepower in Gulf Shores and Orange Beach.
- Level control: floats on Keen, Liberty, Zoeller and Barnes; pressure switches on E-One.
- A control panel with a high level alarm. E-One requires an alarm device on every installation with no exceptions, Liberty cites the plumbing code requiring an audible and visual alarm, and Daphne specifies a light and a sound.
- A check valve and an anti-siphon valve. E-One requires its stainless Uni-Lateral check valve between the station and the street main; Gulf Shores and Orange Beach require a check valve and anti-siphon device on the discharge.
- A dedicated circuit. E-One specifies a dedicated 30 amp breaker with ground and separate neutral; Liberty's ProVore runs on a 20 amp circuit and its 2 horsepower Omnivore on 30 amps.
- A generator receptacle where required. Riviera requires one with a manual transfer breaker; E-One offers a 20 amp, 250 volt receptacle with automatic transfer as an option.
- The pressure line, 1-1/4 inch to the property line connection in Loxley's specification; Orange Beach wants a bigger building sewer, 1-3/4 inch inside diameter minimum, in Class 200 PVC or SDR11 polyethylene pipe.
Permits, forms and approvals
Fairhope requires a building permit and, before a certificate of occupancy, its Grinder Pump Installation form completed and signed by the state licensed master plumber of record, certifying the pressure test, the elevation and that the tank and pump meet the specifications for the usage and the subdivision. Brandon Byrd holds that certificate. Riviera and the City of Foley require written approval from both before any low-pressure connection, and warn that unapproved connections may have to be removed. Gulf Shores Utilities requires the General Manager's written authorization for any pump outside its acceptable types. North Baldwin requires NBU's approval of any STEP components before installation.
Installation details that matter on this coast
Ground water. A buried tank floats if it is empty and the water table is high. E-One's DH152 duplex drawing says concrete ballast may be required; its current DH071 with the Universal Wet Well, the design used for stations built after December 18, 2023, says no concrete ballast is required. Mobile County's MCWS chose a pitless adapter basin package for its Barnes stations specifically because of the high water table.
Future changes to the house. E-One tells owners to contact E-One or the distributor before adding a spa or oversized tub or extending the house over or near the station or its discharge pipe, because the station was sized for the house as it was.
Septic. Zoeller states that it does not recommend grinder pumps in any part of a septic system. A grinder station belongs on a pressure sewer, not in front of a drain field.
Request service from this page
Your name, a way to reach you and what the pump is doing. That is all we need to start. Town and utility are optional.
Sewage backing up or overflowing? Stop using water and call now: (251) 850-8031. On a utility-owned pump, call your utility first.
How the visit goes
Step 1: Utility approval first
The utility's specification, approval letter or superintendent sign-off is secured before anything is ordered, and the building permit is pulled where the city requires one.
Step 2: Design the station
Tank size, pump curve, panel, alarm, check valve, generator provision and pipe size are chosen against the utility's published minimums and the house's fixture count.
Step 3: Set the tank
Excavated to the drawing depth, bedded, set level, and ballasted where the manufacturer's drawing calls for it.
Step 4: Pipe and wire
Inlet from the house, pressure line to the property-line connection with the required check valve and anti-siphon device, and the dedicated circuit to the panel.
Step 5: Start-up and test
Fill, pump down, alarm test, pressure test and running amps recorded; in Fairhope the installation form is signed and filed.
Check who can do the work
Your sewer utility decides who can repair or replace the pump. Compare the rules by utility before scheduling the work.
Questions people ask
Can a grinder pump be installed for a septic tank?
Zoeller's instructions advise against a grinder pump anywhere in a septic system. Septic tanks use effluent pumps, which is a different service and not one this company has confirmed. A grinder station is for a connection to a pressure sewer.
What size grinder pump does a house need?
The utility sets the floor. In Gulf Shores and Orange Beach a single-family home needs at least 2 horsepower delivering 10 gallons a minute at 90 feet with a 115 gallon tank. In North Baldwin and Loxley the pump must deliver 7 gallons a minute against 185 feet. E-One's 1 horsepower progressing cavity station meets the 185 foot requirement because of its pump type, not its horsepower.
Who has to sign off in Fairhope?
The state licensed master plumber of record signs the city's Grinder Pump Installation form, certifying the pressure test, proper elevation and that the tank and pump meet the specifications. The city requires that form before it issues a certificate of occupancy.
Can I install a grinder pump myself?
Not on BCSS, where pumps are installed by BCSS only, and not in Orange Beach, where the code says installation is by the city only. In Fairhope a master plumber must certify it. On other systems the written approvals and the specification still apply, and the manufacturers tie their coverage to a correct installation and start-up report.
Is a submersible grinder pump the same as a sewage ejector pump?
No. A submersible grinder pump sits in an outdoor tank and grinds waste to push it under pressure into the sewer main. A sewage ejector pump sits in an indoor basin and lifts unground waste to the house's gravity drain. See the ejector installation page if your bathroom is below the sewer line rather than your whole house.
Sources and facts
- BCSS: from January 1, 2026, all grinder pumps on its system are purchased from and installed by BCSS. Orange Beach: installation by the city only. BCSS, Grinder Pumps page, www.baldwincountysewer.com/grinder-pumps; City of Orange Beach Code of Ordinances Sec. 74-36 and 74-51, library.municode.com/… (read 2026-11-04)
- Fairhope: a gravity fed sewer is required unless a grinder pump system is specifically approved by the water and sewer superintendent; building permit plus Grinder Pump Installation form signed by the master plumber of record before a certificate of occupancy. City of Fairhope Code of Ordinances Sec. 21-52 (Ord. 1746), library.municode.com/… (Sec. 21-58); City of Fairhope, Grinder Pump Installation form memo, www.fairhopeal.gov/167/Forms-Ordinances; City of Fairhope, Permit Forms notice on grinder pump installations, www.fairhopeal.gov/167/Forms-Ordinances (read 2026-11-04)
- Daphne: low pressure (multiple grinder pump) systems not acceptable unless approved by Daphne Utilities; alarm must have a light and auditory device. Daphne Utilities Standard Specifications Division II Design Criteria, daphneutilities.com/… (read 2026-11-04)
- Riviera: grinder stations (150 gal tank, 2 hp, 1-1/4 in discharge, 230 V, generator receptacle with manual transfer breaker, audible alarm) and STEP systems accepted; written approval from Riviera and the City of Foley required; unapproved connections may be removed. Riviera Utilities, Sewer Policy Handbook sections 7.3-7.4 (file dated 2024-05), www.rivierautilities.com/…; Riviera Utilities, Wastewater Specification 407 Low Pressure Sewer (2026-06), www.rivierautilities.com/… (read 2026-11-04)
- Tank sizes: E-One DH071 70 gal; WH101 100 gal (universal wet well); BCSS Keen station 24 x 60 in tank; GSU and Orange Beach minimum 115 gal; Riviera minimum 150 gal. E/One DH071 Drawings, Universal Wet Well (NA0050P01 Rev E), eone.com/… p.1; E/One WH101 Drawings, universal wet well (NA0057P01 Rev E), eone.com/… p.1; BCSS-distributed Grinder Station User Guide (Keen KPCGSL21 station with generator connection), www.baldwincountysewer.com/… p.1; Gulf Shores Utilities, Grinder Pump Specifications, www.gulfshoresutilities.com/grinder-specs; City of Orange Beach Code of Ordinances Sec. 74-36 and 74-51, library.municode.com/…; Riviera Utilities, Sewer Policy Handbook sections 7.3-7.4 (file dated 2024-05), www.rivierautilities.com/… (read 2026-11-04)
- NBU and Loxley: 7 gpm at 185 ft, 1-1/4 in service line to the property-line connection (Loxley), STEP components approved by NBU before installation. GSU and Orange Beach: 2 hp, 10 gpm at 90 ft TDH. North Baldwin Utilities, Specifications for Utility Infrastructure (effective 2021-09-17), www.northbaldwinutilities.com/…; City of Loxley, Water and Sewer Standard Specifications (March 2019, Sec. 2.5), www.cityofloxley.com/…; Gulf Shores Utilities, Grinder Pump Specifications, www.gulfshoresutilities.com/grinder-specs; City of Orange Beach Code of Ordinances Sec. 74-36 and 74-51, library.municode.com/… (read 2026-11-04)
- E-One: alarm device required on every installation, no exceptions; dedicated 30 amp breaker with ground and separate neutral; Uni-Lateral check valve required between the station and the street main; optional 20 A 250 VAC generator receptacle with automatic transfer. E/One DH071 Installation Instructions, Universal Wet Well (NA0061P01 Rev H), eone.com/… p.6; E/One DH071 Drawings, Universal Wet Well (NA0050P01 Rev E), eone.com/… p.1; E/One D-Series Semi-Positive Displacement Type Grinder Pump Stations specification, eone.com/images/files/d-series-spec.pdf p.9 (read 2026-11-04)
- Liberty: Uniform Plumbing Code requires an audio and visual alarm; PRG runs on 20 A circuits, LSG on a 30 A breaker. Liberty Pumps Installation Manual 2399000E, ProVore 1 HP Residential Grinder Pumps, www.libertypumps.com/… p.3, 9; Liberty Pumps Installation Manual 5647000N, Omnivore 2 hp Grinder Pumps, www.libertypumps.com/… p.8 (read 2026-11-04)
- GSU and Orange Beach require a check valve and anti-siphon device on the discharge; Orange Beach low-pressure building sewer minimum 1-3/4 in ID, Class 200 PVC or SDR11 PE. Gulf Shores Utilities, Grinder Pump Specifications, www.gulfshoresutilities.com/grinder-specs; City of Orange Beach Code of Ordinances Sec. 74-36 and 74-51, library.municode.com/… (read 2026-11-04)
- E-One DH152: concrete ballast may be required; DH071 universal wet well drawing: concrete ballast not required; universal wet well applies to stations manufactured after December 18, 2023. E/One DH152 Drawings (NA0052P01 Rev F), eone.com/… p.2; E/One DH071 Drawings, Universal Wet Well (NA0050P01 Rev E), eone.com/… p.2; E/One DH071 product page, eone.com/… (read 2026-11-04)
- MCWS chose a Barnes pitless adapter basin package for its high water table. Crane Pumps and Systems case study, Mobile County AL Barnes Low Pressure Sewer System, cranepumps.com/… p.1 (read 2026-11-04)
- E-One: contact E-One or the distributor before installing a spa or oversized tub or extending the house near the unit; do not cover the lid, block the vent, or crowd the station with plants. E/One Owners Guide (LM000403 Rev G), eone.com/… p.4 (read 2026-11-04)
- Zoeller does not recommend using grinder pumps in any part of a septic system. Zoeller FM2903 Installation and Service Instructions, 803/805/807 Grinder Pumps, zoellerpumps.com/… p.1 (read 2026-11-04)
- Level sensing: E-One pressure switches; Keen, Liberty, Zoeller and Barnes floats. E/One DH071 product page, eone.com/…; Keen Pump General O&M, Control Panel, keenpump.com/… p.2; Liberty Pumps Installation Manual 2399000E, ProVore 1 HP Residential Grinder Pumps, www.libertypumps.com/… p.5; Zoeller FM2903 Installation and Service Instructions, 803/805/807 Grinder Pumps, zoellerpumps.com/… p.1; Barnes (Crane Pumps and Systems) Installation Manual, Submersible Grinder Pump OGVF/OGVH, d1pkofokfruj4.cloudfront.net/… p.4 (read 2026-11-04)
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