Blessed Lady

This is the cruising blog of the sailing yacht Mabrouka. The Favorites in the side bar allow those with discriminating taste to filter for just the stuff you want to read. Thanks for visiting, Roy.

13 September 2015
21 August 2015
21 August 2015
20 June 2015 | Marina Mazatlan, Mazatlan, Mexico
15 June 2015 | Marina Mazatlan, Mazatlan, Mexico
15 June 2015 | Marina Mazatlan, Mazatlan, Mexico
15 June 2015 | Mazatlan Marina, Mazatlan Mexico
13 April 2015 | Off Club Nautico, Mazatlan Commercial Harbor, Mazatlan, MX
15 February 2015 | Marina Mazatlan, Mazatlan, Mexico
13 February 2015 | Marina Mazatlan, Mazatlan, Mexico
25 January 2015
06 January 2015 | Mazatlan, MX
24 December 2014 | Marina Mazatlan, Mazatlan, Mexico
24 December 2014 | Mazatlan, MX
22 December 2014
21 December 2014
18 December 2014 | Playa Isla de la Piedra, Mazatlan, MX
18 December 2014 | Mazatlan, MX
15 December 2014 | Ensenada des los Muertos, Mexico

Water Box

11 March 2013 | Ballard, WA
Roy / Been waiting all day, ...still no rain
Obviously I'm getting carried away here, ...but there you go. I'm me!

A couple of years ago I installed a Precision Temp ShowerMate propane water heater in the boat. This replaced my wall-mounted "illegal" (according to ABYC) Paloma point-of-source unit. What makes the ShowerMate acceptable to ABYC is interconnects that won't allow propane to flow unless there's ignition, water is flowing, and the forced draft exhaust is functioning.

The unit itself is about the same size as the 110V, 5 gallon water heater I used to have in my lazarette and is installed in the same spot. The old unit finally heard my plea for relief from the 110V load and sprung a leak by chewing itself apart from the inside.

The ShowerMate wasn't difficult to install, but required some troubleshooting to get it to work properly. This resulted in adjustment to the diameter of the propane lines which had gotten too long for their own good. Another adjustment, which is the real subject of this blog entry, was to reduce the resistance in the exhaust.

Skipping some of the details, suffice it to say that I had originally run the 2 inch stainless steel spiral wound exhaust duct to the old thru-hull for my genset exhaust. That unit had gone kaput a few years ago and I just ripped it out, leaving the hull valve in place. As you might know, the opening in a hull valve even for a 2 inch diameter hose is substantially less than 2 inches in diameter, so it constituted a serious restriction in the water heater exhaust.

To solve this problem, I replaced the thru-hull with the water box pictured above. The short pipe coming into the bottom from the left attaches to the thru-hull fitting and the long pipe coming into the bottom from the right attaches to the exhaust duct. The idea here is to allow free exhaust flow, but restrict incoming water to the water box itself. When water does come in through the thru-hull, it has to fill up the entire box before it can flow into the exhaust duct. Nifty, huh?

Again, this design was executed for me by Hjorth Consulting in Ballard, WA. It was expertly made out of 316 stainless steel. Here's a pic of the installation:
Water box installation
Comments
Vessel Name: Mabrouka
Vessel Make/Model: CT-41
Hailing Port: Seattle, WA
Crew: Roy Neyman
About:
Mabrouka and I have been partners in crime since October 1998, hanging about in West Coast waters, first in San Diego, then in Seattle. All of that time we've lived together aboard. [...]
Extra:
I've called this blog "Blessed Lady" because that's my preferred translation from Arabic for "Mabrouka". She's a 1980 CT-41, one of several clones of the original Bill Garden design Mariner ketches. At 50 feet from the tip of her mizzen boom to the tip of her bow sprit, she's 16 tons of [...]
Mabrouka's Photos - Main
Photos 1 to 10 of 10
1
On the streets of Freemont
Street art edited.
Elvis the stuffed cat is a memento of my daughters at the age of about 5.  The peace sign was a gift from good friend, Karyn Borcich.  Thanks to both!
This is Swan as I knew him, though in a more rugged environment than we ever shared.  We usually met at the coffee shop or at Voula
This is of Swan as I would also like to have known him, ...cigarettes, cameras and wine.
This is Steve hosting our Elliott Bay Design Group company picnic at his vacation home in Darington.
I never went fishing with Steve, although he let me try out his fly casting rig in the river by his house during one of the company picnics he hosted.  I
The winter slip on Lake Union
Temporary raft up with Molly Bella near my old slip at Stimson Marina
 
1
This album shares photos from mainland and Baja Mexico.
1 Photo | 3 Sub-Albums
Created 1 March 2015
The beginning of the South Pacific cruise, heading to San Diego and Mexico
1 Photo | 6 Sub-Albums
Created 15 August 2014
Killing time with local sailing and projects before heading south with the Coho Ho Ho cruiser's rally
56 Photos
Created 29 June 2014
Kathy and Karyn (with a "Y") used me as an excuse for a party. I was just fine with that!
25 Photos
Created 31 May 2014
On Lake Union where Mabrouka and I spent the winter
20 Photos
Created 31 May 2014
Shakedown cruise to Port Townsend
7 Photos
Created 25 May 2014
Gunkholing in the Seattle area, with me and Mabrouka getting our sea legs back under us.
50 Photos | 28 Sub-Albums
Created 14 April 2013
Custom made sailing skiff hand-built by NW School of Wooden Boatbuilding in Port Hadlock, WA
18 Photos
Created 21 March 2013
Pre-retirement cruising pics
27 Photos
Created 21 March 2013
Photos accompanying Projects blogs.
43 Photos | 1 Sub-Album
Created 12 March 2013