Protect the pump's longevity by never letingt the water level drop so the housing is exposed. In areas prone to a hard freeze, bring the pump inside until spring unless you plan to heat the water basin or keep the fountain running all winter. Store it submerged in water mixed with a few drops of dishwashing liquid to prevent calcification. Calculate the power you need. For a larger–scale installationlook for a pump that can recirculate 15 to 20 gallons of water per minute.