It is rated at 1/2 hp, 13 amps - will it work with a 3/4 hp moor with a nominal rating of 8.5a @ 110v?

Human, Thanks for your question. As you mentioned, we rate the Sludge Boss float switch at 1/2 HP 13 amps 120VAC. A 3/4 hp pump will run nominally at 8.5 Amps @ 110VAC, but at startup or under load, the amperage draw of the pump will exceed the circuit rating of the float switch, which will cause premature failure of the float switch wiring and the Honeywell microswitch inside the float. The easiest work around for your application is to use a contactor or relay. Please contact us directly for more information on our Sump Alarm website, or @ customerservice@sumpalarm.com We have a contactor we can recommend to install in parallel with this float switch to accommodate your 3/4 hp or larger pump in addition to a wiring schematic. We’re here Mon-Fri, 8a - 5P At: Sumpalarm.com At: Level-Sense.com Call us if you need immediate assistance: 314 787 8059 Thanks for Choosing Sump Alarm Products! Kyle H Applications Engineer, Sump Alarm EI, BSME '17

Will this float work in place of a septic products inc (spi) 20a702 pump down float switch?

According to the Spec sheet for the 20a702: | 20a702 | SludgeBoss | ---------------------------------------------------------------------------------- Cord Length | 10' | 16' | Operation | Pumps Down | Pumps Up or Down | Counterweight | External | Internal | Technology | Mercury | Microswitch | Environmental | No | Yes | Max Amp Rating | 5 AMPS | 13 AMPS | ---------------------------------------------------------------------------------- The float referenced from SPI is a control duty float that is made to be tethered. The Sludgeboss is internally counterweighted and does not require a tether. For the Operation to Pump Down, cap the blue wire coming from the sludgeboss. Let us know if this answers your question.

I used this to replace my "high" float in a 3 float system (high, low, alarm). the affluent level never reaches the low float. replace both floats?

If it doesn’t reach the low float you may have other problems

I have a Berkeley lift pump 5 horse 240 volt ,will this work for our application?

In that application, you need the Sludgeboss to control a relay or starter, and the relay or starter will control the pump. 240 volt applications have 2 hot legs, each 120V. Thats how they make the 240 Volts. Its really -120V and +120V, the difference between the two is 240 Volts. You need both those HOT legs to be opened and closed at the same time. Search amazon for B001KGSJ74. Also if it is an existing pump, your pump likely already has a contactor or starter on it.

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♻️ Take control of your septic system with the Sludge Boss — where durability meets smart design!

BUILT TO ENDURE - Rugged polypropylene and PVC-jacketed wires ensure corrosion resistance and durability in harsh environments.
ECO FRIENDLY SAFE - Mercury-free, IEC and CE certified for environmentally responsible wastewater management.
POWERFUL MOTOR CONTROL - Directly manages pumps up to ½ HP (13 Amps) for reliable wastewater handling.
EFFORTLESS INSTALLATION - Self-orienting float design eliminates the need for tether weights, saving time and hassle.
LONG LASTING PERFORMANCE - Honeywell micro switch rated for 100,000 operations guarantees dependable, maintenance-free use.

The Sludge Boss Septic Float Switch is a heavy-duty, mercury-free float switch designed to control sewage pumps up to ½ HP. Featuring a self-orienting design and IP68 waterproof rating, it reliably manages viscous liquids and suspended solids in wastewater tanks. Built with corrosion-resistant materials and a Honeywell micro switch rated for 100,000 cycles, it offers long-lasting, eco-friendly performance for professional-grade septic system management.

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Manufacturer	Sump Alarm, Inc.
Part Number	SA-2368-5-RAW
Item Weight	2.75 pounds
Product Dimensions	7 x 4.5 x 4.5 inches
Item model number	SA-2368-5-RAW
Is Discontinued By Manufacturer	No
Style	15 Foot Cable
Material	Plastic
Power Source	ac/dc
Voltage	220 Volts
Installation Method	Floor-Mounted
Cord Length	16 Feet
Plug Format	None -Wire Leads
Switch Style	Float Switch, Temperature Switch
Usage	Sump Pump; lift station; pump control; septic tank; alarm
Batteries Included?	No
Batteries Required?	No

Sludge Boss Septic Float Switch, Heavy-Duty Sewage Pump Switch for Viscous Liquids and Suspended Solids in Wastewater, Mercury-Free Self-Orienting Tank Float for Septic Pumps to 1/2 HP (16 Ft Cable)

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