Well pumps
Franklin Electric 20FV1S4 Submersible Well Pump
Editorial estimate (equipment price plus a typical labor add-on), not a sourced installed quote. Get a real quote — the pull-the-pump cost is the single biggest swing factor and is not predictable from the pump's price alone.
Conventional 1 hp submersible delivering 20 gpm — the highest flow per horsepower in our set.
Our take
Franklin makes the motors inside a great many pumps that carry other brand names, and this is the straightforward version. No electronics in the well, a control box you can replace from the surface with a screwdriver, and a service network that reaches everywhere. It will not give you constant pressure. For a lot of households that is a fair trade for halving the repair cost when something eventually fails.
Best for
Deep wells, high-demand households, and anyone who prioritises repairability and parts availability over pressure smoothness.
Watch out for
The control box is a separate purchase and a separate failure point. Confirm it's included in the quote.
Data notes
Our validation checks flagged the following. We publish these rather than hiding them, because a specification that looks odd is something you should know about before you buy.
max_head_ft: Rated flow and maximum head together imply 2.42 hydraulic hp from a 1.0 hp motor. These are almost certainly specified at different operating points — label them clearly.
What owners and installers report
Collected from trade forums, owner communities and video reviews. Every report links to the original. We synthesise and quote briefly — we don't republish other people's writing.
Every report below traces back to a single source. The sections are broken out by topic because that's how they read, but treat this as one data point, not independent corroboration across topics — a second source agreeing (or disagreeing) would change that.
Reliability and failures
What breaks, when, and how often — from people several years in.
Franklin's failure mode is a control box capacitor at years five to eight — above ground, cheap, and repairable with a screwdriver. A worse specification sheet and a much better repair story.
“control box capacitor failure years 5-8; field-repairable above ground” — forum participant trade, 2026-01-01
Grundfos vs Franklin vs Goulds submersible pumps — field failure patterns · HeatingHelp — The Wall · 2026-01-01 · read it in context
Sources are linked so you can verify any of this yourself. We don't mirror content — Amazon in particular permits no republication of review text, so where we use retailer data we show the aggregate rating and link out. How we collect and weight this →
Compare against
Goulds 10GS10412C Submersible Well Pump
316 stainless submersible with a floating-impeller design that tolerates sand and a factory-matched control box included.
A.Y. McDonald 24100P2 Submersible Well Pump
1 HP, 20 GPM stainless 2-wire submersible from an independent, 150-year-old Iowa manufacturer — the highest flow rating in this catalog at this horsepower, traded off against a comparatively low 243 ft max head.
Franklin Electric FPS 4400 Tri-Seal Submersible Well Pump
1 HP, 25 GPM thermoplastic-body submersible with a 205 ft max head — the highest flow rating and the only thermoplastic-body pump in this catalog.
Sta-Rite HS Series S10P4HS10231-03 Submersible Well Pump
1 HP, 10 GPM stainless submersible with a floating-impeller design marketed specifically for sand resistance.
Before you buy this
Get the well log before anyone quotes you — from the original driller, your state's well-record database, or a new sounding if neither exists. Insist on a measured pumping water level, not just well depth; head is what actually sizes a pump, and horsepower alone tells you very little. If a contractor proposes a constant-pressure system for pulsing or dropping pressure, ask what a new pressure tank alone would cost first — a waterlogged or undersized tank produces the same symptom and is a far smaller repair. And ask who pays to pull the pump if the down-well electronics fail — that's the expensive part of any well repair, not the parts themselves.