Software for the yard running submersible pumps.

A submersible pump is the unit a rental yard reaches for when water has to leave a hole and stay gone. It sits down in the fluid it moves — clear trench water, sand-laden slurry, or solids-heavy trash — and pushes it up and out so a crew can pour a footing, clean a pit, or keep a flooded vault from stopping work. That submerged, run-it-and-leave-it duty is exactly what makes pumps hard to run as a fleet. The same unit goes out as a kit with hose, cable, and fittings, the electrical match has to be right or it never starts, run-hours climb around the clock on a dewatering job, and abrasive fluid eats impellers while a missed float cooks a motor. EquipFlow handles pumps the way the yard that built it does — dispatch, billing, maintenance, and return inspection on one record per unit.

Built inside Rental King, right now.

Rental King is a heavy-equipment rental yard in Odessa and Midland, TX. They run submersible pumps, manlifts, forklifts, light towers, generators, compressors, and water trucks on MSA contracts through the Permian Basin — 24/7, oilfield pace. EquipFlow was designed and first deployed inside that yard. Every feature was tested against their live operation before it shipped. The product runs there today.

Submersible pumps are quiet earners and quiet money pits at the same time. A pump committed to a long dewatering job earns nothing extra if the standby hours never reach the invoice, and it loses real money when a unit comes back with a water-flooded motor that nobody caught and charged. The mechanical seal and the run-hour reading are the spine of both maintenance and billing, so they have to be captured the same way every return — read the oil chamber, log the hours, tie it to the rental record. When dispatch, billing, maintenance, and inspection all read from one unit record, the dispatcher confirms the right pump and voltage, the mechanic services against real hours, and the bookkeeper closes the month without reconstructing which pump ran where. That single-record discipline is what keeps a hard-running pump fleet from turning into guesswork and write-offs.

Submersible Pump specs the rental record tracks.

Every number below is a sourced specification range. The render layer is the only path these values reach the page — they live on the unit record, not in a dispatcher's head.

Max flow rate

16-4500gpm

Max total head

13-500ft

Motor power

0.5-58hp

Discharge bore

2-8in

Max solids passage

0.24-3.2in

Supply voltage

115-575V

Standard power cable length

32-50ft

How EquipFlow handles submersible pumps on the dispatch board.

A submersible pump rarely goes out alone. It leaves the yard as a kit — the pump, the right length and bore of discharge hose, cam-lock fittings, a strainer, often a float switch, and a power cable or generator matched to the customer's available supply. The dispatch board treats each pump as its own line so a dispatcher can see which units are placed on a job, which are staged, and which are due back at any hour. The trap is the electrical match: a three-phase pump sent to a single-phase service, or a unit short on cable to reach the panel, is a dead trip and a return trip. The dispatcher confirms voltage, phase, cable length, and hose on the rental record before the truck leaves. Because dewatering jobs pull several identical pumps at once, the board flags fleet draws against overlapping bookings at assignment, not at the gate.

Billing submersible pumps — MSA, standby, and site-level tax.

Most steady pump demand in the oilfield rides an MSA, so the negotiated rate override lives on the customer record per pump class rather than in a sheet the dispatcher keeps in their head. A rental created for that account picks up the right rate automatically. Submersibles often sit running or staged on a job for weeks, so when a pump is idle but still committed to the site — the pit drew down, weather paused the work, the crew demobbed but left the unit — standby is billed at a rate separate from active use, and the dispatcher marks it so the invoice carries both lines without a month-end rebuild. Hose, fittings, cable, and generator add-ons ride the same invoice. Tax jurisdiction is set on the delivery-site record, so a pump that worked across more than one county bills the right rate per site. Invoices post to QuickBooks Online on close.

Maintenance on submersible pumps.

Pump PM is run-hour driven, not calendar driven, because a unit running continuously on a dewatering job piles up hours fast while a yard spare sits dry for a season. The run-hour reading is captured on the return inspection and posts to the unit record, and the maintenance module advances the PM clock from that reading so the next service lands on real use. The mechanical seal is the heart of the job — it keeps water out of the oil chamber and the motor — so PM leans on checking the oil chamber for water intrusion, inspecting the seal faces, and measuring impeller and wear-plate clearance, which opens up as abrasive fluid erodes it. Cable and plug integrity get checked every time, since a nicked cable is a ground fault waiting to happen. Work orders, parts, and meter history live on the unit record, where a damage charge from a return inspection turns into a repair ticket.

Submersible Pump return inspections.

Two inspection rhythms apply. Before placement the customer is responsible for confirming the supply matches the pump and that the strainer and float are set so the unit does not run dry — that check stays with the renter while the pump is on the job. The yard's own control is the return inspection: before a submersible comes off rent, the driver runs a mobile-web checklist on a phone with no app install, records the run-hour reading, and attaches required photos that cannot be skipped. Pump-specific checks matter here — pull and read the oil chamber for milky water that signals a failed seal, look at the impeller and wear plate for erosion, confirm the cable is the full length sent out and its jacket is uncut, and verify the strainer and float came back. The inspection ties to the rental record before the truck leaves, so a dispute over a cooked motor has photos and a timestamp behind it.

Common submersible pump classes in the field.

The product, the same way it runs for submersible pumps.

The sections below are the EquipFlow modules that matter most when running submersible pumps — each links to the full feature detail.

Operator guides for running submersible pumps.

Field-tested playbooks that go deeper on pricing, dispatch, billing, and maintenance for fleets like this.

• Dewatering Pump Rental Guide →
• Equipment Rental for Oilfield Operations →
• How to Bill for Equipment on Standby →
• How to Handle Rush and Emergency Rentals →

What you give up running submersible pumps in EquipFlow.

EquipFlow is a web app, so the return inspection needs a signal to load. On a remote pad or down in a vault with no coverage, the driver cannot finish the mobile inspection on site; most yards run it back at the yard, which means the oil-chamber read and run-hours land later than ideal. There is no built-in pump telematics or remote run-monitoring today, so a unit's actual run time on an unattended job is captured at return rather than streamed live. And the rate logic is built around the MSA-and-standby model the oilfield runs on; a yard that bills pumps purely by the day with no run-hour component should bring that to the demo so it gets scoped honestly.