Engine, AC flush systems

drtsr1

.
Nov 14, 2013
52
Hunter 460 Palm Beach
I am looking for ideas on how to flush the engines an AC salt water cooling systems. The boat is always in the water.
 
May 16, 2007
1,509
Boatless ! 26 Ottawa, Ontario
I have a T's on the thru hulls for head, AC, Yanmar, and generator. One side of T has a nipple and goes to the original hose. The other side goes to a valve with a nipple. I put a hose on the nipple and put it in a 5 gallon pail with salt-away mixture. I just started using the saltaway before just did a fresh water flush. Some people like to do a 24 hr vinegar soak to kill any marine growth. I've never tried that. I just do the flush at the end of a season or if we are going to be in a slip for a month I'll flush the generator. All our thru hulls are together at the bottom of the companionway steps so very easy to do this.
An added advantage I'm told is the thru hulls could be closed in an emergency and the engines used to assist the bilge pumps. Hopefully I'll never find out if this is true!
Bob
 

eianm

.
Jul 7, 2010
523
Hunter 42 Sydney
the seaflush system http://www.youtube.com/watch?v=K1Vo-jvmd9s
seems a good option, but the price is ridiculous- its less than $5 worth of plastic and the guy wants $70 for it- shame - I am sure he would make a lot more money out the volume increase if he sold it for a sensible price- $19.95??
 
Jan 12, 2011
930
Hunter 410 full time cruiser
I just shut the hull valve, take the hose off, stick it in a bucket of water, turn on whatever and run it while filling the bucket with fresh water.