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Freshwater flush I installed a freshwater flush system on the single Cummins 6BT 5.9-M engine that powers our trawler after purchase. I flush with fresh water for 5 minutes at idle with the seawater thru hull valve closed after every cruise except when freshwater is not available. I place the...

I am interested in replacing the sun-damaged windshield and sliding glass gaskets on our trawler. The windshield glass is etched with the words "TEMPERED GLASS" but I have not found any information about the glass or window manufacturer. This North Sea Cape Classic 30 was built near Church...

iPad for navigation Our trawler has a Raymarine Axiom Pro MFD with Navionics e-charts for primary navigation and a WiFi iPad with Rose Point Navigation Coastal Explorer (CE) for backup. The iPad is linked a Vesper Marine XB-8000 AIS device for heading information. In reality, I prefer using CE...

Another vote for Wallas diesel furnace We purchased a Wallas 30GB diesel furnace for our 30' trawler from Scan Marine in Seattle over 2 years ago. It was professionally installed and has worked flawlessly since installation. The furnace is well designed and constructed as well as simple to...

Panacea123: The Optio fuel flow sensors are manufactured by Interactio in BC, Canada. The sensors were reviewed by Panbo.com last year. Contact info: David Burton dburton@interactio.co Thanks

Ski in NC: The fuel pump is a Lucas CAV pump. Would you expect the 2 larger debris particles shown in the first and third photos to pass through the injectors and then into the return fuel line? Thanks

bayview: The Optio sensor is constructed of non-metallic components except for the 2 magnets located in the posts of one of the gears. The hose barbs are constructed from aluminum. The debris that appears to be slivers from a fuel line fitting are ferrous. Thanks

The attached photos show the return fuel line transition from the metal tubes that carry unused fuel to the rubber hose that returns the fuel to the tanks. More than one threaded fitting exists in this fuel return line Thanks

I installed Optio fuel flow sensors in the supply and return fuel lines of my Cummins 6BT 5.9-M engine about 6 months ago. The sensors functioned properly until the last cruise when the GPH usage shown on the iPhone app suddenly increased several fold without a change in the throttle. The return...

reply OldDan1943: I do have a supply of wooden damage control plugs but do not plan to ignore the issue. I have contacted a local marine electrician. Thanks

reply Cigatoo: yes; same marina with same boats in the neighborhood. The aluminum prop shaft anode lasted 9 months and the aluminum transom anode was installed 12 months ago and is not ready to be changed. Thanks

reply Nickair: I assume the thru hull fittings are made of silicon bronze but do not have an invoice to confirm that opinion. Thanks

reply Xsbank: the green bonding wire is attached to all the thru hull fittings. The green bonding wire also connects to the following: 1. An aluminum anode mounted on the outside of the hull near the transom 2. A Dynaplate bronze ground plate mounted on the outside of the starboard hull 3. One...

reply diver dave: the props do not show any evidence of corrosion

The bottom of my trawler was painted with Interlux Micron CSC antifouling paint in June 2019. The prior bottom paint was also Interlux Micron CSC paint. The cuprous oxide content of the paint is 37%. The attached photos taken on January 7, 2020 and show some corrosion around 2 of the thru hull...

Kevin: You are correct to assume the fuel line was disconnected from the fuel tank pickup tube and that end placed into the gallon jug of diesel fuel without the in-line fuel filter and the the 2 short sections of rubber hose that connect the filter to the pickup tube and then to the fuel supply...

Peter: The gallon jug of diesel fuel was located below the Wallas fuel pump; at the same level as the port fuel tank. The heater fired up on the first attempt after removing the fuel line from the tank pickup tube and placed in the jug. The heater ran for 30 minutes. The entire fuel line was...

A Wallas 30GB diesel heater was installed on my trawler 18 months ago. I have been more than satisfied with the unit until 3 days ago when it shut down about 10 minutes into the startup process. Inspection of the fuel line revealed just air in the line. After tightening all the fuel line...

Interlude Micron CSC - cuprous oxide 37%

When my trawler was hauled for the first time since ownership recently, an area on the starboard hull around a Dynaplate showed corrosion. The area was about 1' x 2 ' with loss of bottom paint down to bare gelcoat in places. I have the following comments/questions: 1. There are 2 hull anodes...

Ken: You are correct that the Dynaplate is made of bronze; tiny bronze spheres bonded together by heat & pressure into a porous plate. However, there is no connection between the Dynaplate & the transom anode. Thanks

Ken: I have noticed the same issue with the bonding wires on the engine block. Correcting the wires going to the engine block is on my "To do" list. There are no other bonding wires connected to the transom anode. My current plan is to disconnect the bonding wires from the Dynaplate and connect...

Ken: I am considering the following causes for the loss of bottom paint around the Dynaplate: 1. Internal DC stray current corrosion 2. External DC stray current corrosion 3. Galvanic corrosion from faulty installation and/or failed connections of the bonding system 4. Failure of the galvanic...

Prop shaft anode David: The attached photo shows an aluminum collar anode on the prop shaft which is difficult to see on the other photo. Does your recommendation to "... ditch the Dynaplate" mean just disconnect the green grounding wires or to remove the Dynaplate from the hull? Thanks

The photos attached to this post show the Dynaplate installation. The exterior photos were taken after the hull had been pressure washed during the first haul out since purchasing the vessel. White gelcoat is visible in places around the Dynaplate. The vessel is not equipped with a SSB or HAM...