Add spaces: Since2005Theysailupwithconstant

Answer: Since 2005 They sail up with constant

Add spaces: Rememberthatyoucanrentthisboatwithskippertohelpintheirfirstnauticaladventuresandtogetrealsailoratmosphereatyourevent.

Answer: Remember that you can rent this boat with skipper to help in their first nautical adventures and to get real sailor atmosphere at your event.

Add spaces: Clearly,renovationofawellwillhavenoeffectunlessthemostimportantcontaminanttransportpathwaysareclosed.

Answer:
Clearly, renovation of a well will have no effect unless the most important contaminant transport pathways are closed.