I agree with Josh that a tee in the line allows for applying water pressure and blowing out the line. A very effective method of cleaning things out, by the way, as we had a similar approach on our 27 MKIII. That said, if I was going to put in a tee, I would probably go one step further and include a ball valve between the tee and engine or other apparatus (such as A/C intake). This way, the pressure would definitely be directed down and against the blockage. That said, it may be overkill...
Bruce Whitmore 1994 C&C 37/40+ "Astralis"Madiera Beach, FL (847) 404-5092 (mobile) bwhitm...@sbcglobal.net
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