<prompt> Translate the following text to EnglishIkiwa heater imezama moja kwa moja ndani ya maji ya bahari, hakikisha kwamba vifaa vya heater havina kutu au kuvuja vitu vyovyote vinavyoweza kuchafua maji ya chumvi.  <response>: If a heater is immersed directly into the seawater, ensure that the heater materials do not corrode or leach any substances that would contaminate the brine. 