Myers MEOSP50 submersible pump is specifically designed to meet the demands of residential sump, elevator pit, septic tank effluent, industrial circulator and transfer tank applications. The 1-1/2 inch NPT dis charge pump is available with a powerful 1/2 horsepower motor, in both automatic and manual configurations, and can handle ca paci ties up to 60 gallons per minute and heads to 25 feet. The MEOSP50 features a heavy-duty cast iron construction that provides durability in rugged applications, as well as assisting in dissipating heat from the motor, for cooler operation. The pump’s impeller, which is threaded to a stainless steel shaft, provides long life even in demanding applications, and is capable of handling up to 5/8 inch spherical solids and lint. The MEOSP50’s oil-filled motor provides superior cooling char ac ter istics, allowing the motor to run cool and quiet for years. This oil-filled design also provides permanent lubrication of the shaft bearings, minimizing maintenance and extending the service life of the pump. In addition, to protect against overheating, the motor windings contain an automatic reset thermal overload. Automatic models feature the exclusive Myers diaphragm pressure switch, which provides proven reliability in installations where a float might hang up. It also incorporates a unique “piggyback” plug arrangement, which allows for simple conversion to manual operation by simply removing the switch plug and inserting the motor plug directly into the electrical outlet. This feature provides an easy way of periodically cycling the pump to ensure it is operating properly.