Simaco EGO 500 Puddle Sucker Pump is an automatic submersible residue water drainage pump with the option to be operated manually. When switched to automatic the operating range is: on at 115mm - off at 60mm). When switched to manual it can pump down to 10mm from a priming depth of 30mm. Suitable for flooding, level control in narrow sumps and flat, shallow or awkward areas where there is not a sump. Constructed in thermoplastic.