The RSD-400 Automatic Puddle Pump with Crab Sensor manufactured by JS, also known as a Puddle Sucker is a fully automatic low level drainage pump able to pump clear water down to as little as 1mm.
With the addition of the crab sensor, whilst resting on a flat surface, it remains weighted to the bottom, allowing the Crab sensor to detect the presence of water on the floor. A magnetic key is supplied which allows the user to adjust the delay time of the start and stop sequence according to your own needs at site level.
The factory settings for the Crab sensor are that the pump turns on 5 seconds after the sensor detects water and turns off 30 seconds after the sensor no longer detects water.
Cable length of the Crab sensor is 30cm.
Requires a minimum of 5mm of water to operate and is required to be primed on initial use.
This makes this RSD-400 ideal for applications such as basement or cellar drainage, flat roofs or car parks or for instance where nuisance standing water is present that requires low level drainage.
As standard the RSD-400 pump comes equipped with a non-return valve on the suction side, which prevents the return of any water. The bottom plate is manufactured from cushioned rubber which helps prevent damage to the pump bottom or surface which it is placed.
You can be assured of quality - stainless steel outer case, shaft and motor case. Cast iron motor lid, pump casing and volute with double mechanical seals, carbon ceramic and silicon carbide in a lubricated oil chamber.
Supplied with 10 metres of power cable.
Specifications:-
RSD400 automatic puddle pump with Crab sensor
Centrifugal Impeller
230v and 110v available - please select correct voltage from drop down menu.
0.4Kw
190 Litres Per Minute Maximum
11.5 Metres Head Maximum
1¼" BSP Female Outlet c/w Step adapter hose tail connection 25mm/19mm/15mm
H 370mm x W 167mm x L 167mm
Complete with 10 Metres of Power Cable
Suitable for clean water applications.
Suitable for clear water applications.
Customer reviews
Cellar pump
So easy to use as the chap on the phone said. Just plug and pump. Saved my cellar from flooding.
Erica Huwkins | Chesterfield | September 2022
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Brand:JS
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Condition:New
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Product Code:012-400A
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Weight:15kg
Buy with confidence
At Henry Pumps, we support residential, commercial, and industrial customers, from homeowners and landlords to contractors and facilities teams. Based in Derbyshire, we help solve flooding, drainage, and water management challenges across the UK. Every pump we supply is chosen for proven reliability and performance, backed by expert, straightforward advice you can trust. Whether you’re maintaining a property, managing a building, or dealing with an urgent issue, we’ll help you find the right solution.
