RDG603A17 – Issue 1 – Shire 30_40_50 WB/RB Manual
Page 36 of 51
freezing, ensure all seawater or raw water is drained from the system.
•
Alternatively, run neat antifreeze through the seawater pump inlet to protect the
system.
•
Ensure that the antifreeze is drained before starting the engine during the next
season. This is to ensure that it does not get into the marine environment. Dispose
of the antifreeze correctly.