Recent content by davierobb

  1. davierobb

    Galvanic current

    There's a shaft, 1kg Hull and 1kg fitted to a mild steel frame that protects the prop and shaft from grounding. Only the 1kg Hull anode is bonded inside the boat. The silver chloride ref cell is possibly a more consistent method of deterring the level of protection. If you get different...
  2. davierobb

    Galvanic current

    My own boat is 10ma. We also disconnected both batteries on friends boat and there was no change, anode current remained consistently around 30ma. Connecting disconnecting the main also had no affect. With no knowledge on the subject 30ma did indeed seem to be too high but after considering...
  3. davierobb

    Galvanic current

    VicS, your comment about 30ma draw resulting in the loss of 0.3kg of anode was something I hadn't thought of. I found some other information on the subject and you arithmetic was spot on, thanks. The anode is 1kg so I'm thinking a theoretical 3 year lifespan suggests that the 30ma draw is more...
  4. davierobb

    Galvanic current

    It is in a marina but Shore Power is never left connected when boat left unattended.
  5. davierobb

    Galvanic current

    Apologies, I missed some very pertinent info, the boat is never left with shorepower attached and batteries are always isolated before leaving. An automated bilge pump and heater are the only live circuits when boat not in use. Bilge pump was blocked by unused tywrap bracket which was...
  6. davierobb

    Galvanic current

    A friends motor boat nearly sunk when the Annode disappeared and the mild steel retaining bolt was dissolved. Boat is now back in the water with a new set of annodes, Rudder, shaft, Hull and metal frame. The starter motor, alternator, bow thruster motor, charger and heater have all been...
  7. davierobb

    HP -528A AIS no NMEA data

    Just helped to fit one of these on a friend's boat and pin 6/7 had too be reversed. I'm not sure if it's the manual that is wrong or if the unit has been wired incorrectly.
  8. davierobb

    Marina electricity charges

    I think we might be in the same marina, it begins with A. Example 8A in the doc covers marinas and it doesn't allow for infrastructure charges. In fact the document seems to ve very clear in that infrastructure can't be included in the charge. I think we need a user group at said marina...
  9. davierobb

    Horizon 1000/1500 windlass wanted for spares

    I'm looking for a horizon 1000 windlass to strip for spares, mainly looking for main shaft with LH setscrew. Anything considered.
  10. davierobb

    Vetus BOW23 bow thruster manual.

    Many thanks for the info,invaluable.
  11. davierobb

    Vetus BOW23 bow thruster manual.

    We have one of the original vetus bow thrusters the BOW23. Has anyone fitted a new prop to one of these, any info appreciated. Also a workshop manual would also be appreciated.
  12. davierobb

    Sailing Clothing Recommendations

    Buy the best kit you can afford, I bought a musto hpx suit 20 years ago and I'm still using it. I sail out of Ardrossan and have had good use from suit so the original cost was justified. If you intend to sail in all weather then you can't put a cost on personal comfort. I would also say...
  13. davierobb

    Vetus Water Strainers

    The lid has a raised Box section on top. I used plumbers pliers open wide to catch the box section. No pressure put on threaded part.
  14. davierobb

    Axiom plus 9 with lighthouse charts, any experience ?

    I use navionics on axiom 9, very happy. I'm just killing time while new card activates so repeat customer.
  15. davierobb

    SY Atrevido ex drug running yacht

    The SY Atrevido was sold by wilsons on 27th May, anybody know how much it made at the fall of hammer. There is a 25% buyers premium plus vat. :(
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