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dom
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Posts posted by dom
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4 minutes ago, MauriceMynah said:
Can someone please tell me why Black Friday now lasts 14 or more days?
And the rest. It seems to be Black Friday month now, which is a completely ludicrous concept.
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Personally, I'd say replacing 60 year old cabling with 30 year old cabling is probably false economy. The problem with copper cable is when it gets old, it can either oxidise or corrode within the sheathing and fail with no external indication.
I'm not 100% sure I'm completely understanding what you're proposing, and whether what you're trying to repurpose is some sort of old 240v to 12v charging hardware. If so, I'd be even less likely to reuse in this case, as modern hardware has improved substantially in the fairly recent past and is reasonably economically priced in a lot of cases.
I've not studied the 240v sections of BSS to any great extent, but have a feeling there may be a requirement for a sturdy cover if an external hookup socket is in an exposed position. If you go on the BSS scheme website, all the criteria are downloadable in a PDF.
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29 minutes ago, floydraser said:
Alternatively, strip the plastic off and weigh it in.
I was going to suggest that, but did a quick bit of mental arithmetic and think it'd probably be barely worth it.
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16 minutes ago, kpnut said:
Well, yes, does anywhere spring to mind? Like the flood marshes of the Broads perhaps?
There's a national issue with water supply in summer. Depending on whether it's fresh or saline, the clever thing would be to divert it elsewhere for storage. The Great Ouse at Denver gets sent down to a couple of reservoirs in Essex, via a pumping station at Kennett, near Newmarket.
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What type of cable is the 240v side? T&E, white or blue flex?
On the 12v side, you might find the chassis was being used for grounding. That may cause issues with BSS and 2 wire checks (Section 3.7). That aside, BSS is mostly just checking connections are firm, everything is fused and batteries are secure, so nothing else obvious springs to mind.
As a former auto-electrician, my initial gut feeling is, it's probably making work for yourself - and potentially using material which could be degrading due to age.
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10 minutes ago, Chelsea14Ian said:
If you are at the Lifeboat shed looking to the left.About 30 yards,from the shed is where the sea could overlap.My short time here,everytime I'm there large parts have been lost
That's exactly where I was thinking. The big concern for me would that water would then channel in behind the dunes, rapidly overwhelming a lot of housing.
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1953 in particular, as I've heard first hand from family members who experienced it, but yes. Been a while since I've been to Hemsby, but from what I can remember, there's not a lot of margin to the north of the currently affected area before you start to see a major risk of influx in a severe storm or tidal event. I presume justification for the works at Sea Palling was along similar lines, despite its fairly small permanent population.
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The fundamental issue with planned neglect is the risk of a major catastrophic event. Sooner or later, erosion is likely to result in a sudden and unexpected event, which carries significant risk of fatalities. If that happens, the cost will very rapidly make £20m look like pocket change. Given the scale of fatalities in '53, local authorities ought to be more than aware of this.
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Happisburgh area and to the north has always had major issues (including Shipden and a big bit of road around Trimingham). When I was at school in the mid 80s, we had field trips there and had longshore drift explained to us in great detail. Hemsby and further south seems to be a new phenomenon though. Something has obviously changed, but I suspect it's more likely to be Great Yarmouth harbour, or the offshore wind farms than climate change. It's very easy to see how Sheringham Shoal, Race Bank, etc could be pushing tidal energy away from the coast and down towards Yarmouth.
The trouble is now, we're changing so much of the natural environment in such a short space of time, without studying the effects that ultimately no-one really knows the truth.
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59 minutes ago, marshman said:
I am trying to think of a Broad which has become unnavigable through neglect - I am sure others know better than me and will put me right.
Depends how far back you're talking. Belaugh Broad and Norton's Broad could probably be categorised as such. Hudson's Bay possibly, through abandonment of the staithe - but that may be hard to separate from the land grab which closed Hoveton Great Broad.
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11 hours ago, BroadAmbition said:
Everyone (And I mean everyone) I have met since last night is blaming the Blessed Authority for this situation. The silting on the Lower Bure is holding the water back so it can’t ebb out sufficiently before the next incoming tide, therefore every flood tide keeps on pushing up water levels. Business, home owners, boaters all suffering alike.
It was very evident that recent storms brought levels up everywhere. Locally, the Great Ouse was extremely high. I also noticed videos online from Rufford Ford up in Notts showing record levels of water.
What's notable now though is that the Great Ouse has come down dramatically and is actually relatively low for this time of year - currently about 2ft below the level where it causes flooding. That does tend to suggest a specific issue such as dredging worsening the situation on the Broads.
Have BA done some or all of the planned dredging work below Yarmouth yacht station now?
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3 hours ago, Mouldy said:
Sssssshhh! Steady, Danny! Don’t give the good doctor any ideas!
RGO licences covers the Nene as well though, so the overall navigable distance is slightly more. You're also paying for the maintenance and power costs for locks, plus staffing in some cases.
To be comparable, BA would also have to provide 48 hour free moorings, DIY pumpout facilities and long-term moorings from £116.68/m/yr. If they did, people would probably be less complacent about the cost of tolls.
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1 hour ago, ExSurveyor said:
Don't forget they need a head of planning. With only around 400 applications a year they should only need one assistant but any ideas how many planning staff they have.
The current job ad for the Head of Planning shows 6 direct reporting staff.
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36 minutes ago, Bikertov said:
When I think about it, I doubt the boat has been out of the water for at least 2 years, maybe 3. From the picture, they don't seem to far gone - if I cleaned them up with a wire brush, would they last another 2 years ?
Conventional wisdom is replace at 50% and expect them to last 12 months - but that's in salt water.
In fresh water, zinc develops an insulating coating, so the anode stops working and never erodes. Magnesium is best in fresh water, but pretty much dissolves in salt water. Aluminium is best in mixed or brackish conditions.
I'd probably have said go with aluminium, as the river's tidal as far as Brownshill Staunch so there's potential for brackish water (it's not unusual to see seals at Earith). You may be better off taking Smoggy's advice though, as it's based on 1st hand experience. Looking at your image, I'd say just clean them up and see how they look.
21 minutes ago, Bikertov said:Failing that, apparently you can put up a broomstick (or similar) vertically on the deck and tie a big rag to it, then wait for the next storm to blow
Believe it or not, my dad's Broom 30 actually came with a short mast and a small sail. The previous owner was a boatyard owner, who'd opted for all the coastal extras. I presume the sail gave some stability benefit in extreme coastal conditions, but I've never quite figured out how or when you'd use it.
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1 hour ago, Bikertov said:
The survey also noted the 2 anodes (skeg and rudder) at 75% intact. But maybe I should just change them anyway if it is going to be 2 years until the next planned lift-out.
Did they say what metal type are fitted?
I'd probably be less concerned about replacing them, unless you plan on spending a lot of time on the lower tidal sections. Dom Buckley recommended fitting them to the boat I planned on buying recently, but he has also commented before now on the fact that most hire boats don't run them and don't suffer significant corrosion even after 20-30 years. Assuming your electrics are in order, corrosion should be pretty minimal even if your anodes are gone. If you have an earth leak issue, even new anodes can be gone in a matter of months.
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43 minutes ago, Smoggy said:
Instead of re-packing the stuffing box why not consider changing for a volvo type dripless seal, the orbitrade ones asap supplied do have a vent fitting so they never need burping when launched.
That's really sound advice. Tides marine ones are also worth considering. Not cheap, but they include a couple of replacement seals in a holder on the shaft so you can pull and replace a seal whilst in the water.
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25 minutes ago, Bikertov said:
Whilst I really like the whole Victron world you put in, I'm not sure I want to spend too much on all the monitoring side as you did, at least not right now.
Renogy RBM500s are worth looking at. £50 for a shunt and LCD display is pretty good value for money.
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4 hours ago, Smoggy said:
But you can't possibly trust nature to do what it has always done without a decision from our glorious leader!
People need to start challenging his ability, rather than just complaining (that comment's not aimed at you personally Smoggy).
I think the easiest way to start eroding the footings of his ivory tower would be making FOI requests for 5 and 10 year budgets and flood risk mitigation plans. If they don't exist, it highlights a lack of foresight and planning. If they do, inaccuracies and poor forecasting or planning will soon start to come to light.
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The main saviour with the Great Ouse is the washes between the Old and New Bedford Rivers, which are basically just huge sinks for flood water. It's not perfect though. The wash at Earith Bridge regularly floods, leaving us cut off in Ely direction for weeks, or even months on end. Welney has similar, but worse issues.
Flooding issues used to be a lot worse and I can remember back in the late 90s there was one year when the river came over and flooded half of the road on The Waits in the middle of St.Ives. Low Road past Jones' Boatyard's entrance through to Fenstanton also flooded. A mate of mine drove it in his Land Rover and the water actually came over the bonnet. I lived in St.Ives at the time and communting was a nightmare for months on end.
After that issue, the road around the entrance to Jones' yard was raised and drainage improved. More recently, the river was subjected to heavy dredging around Earith Bridge, which seemed to make a big difference and reduced the level of flooding across the flood plains around Holywell. Which is why I wonder whether the dredging in Great Yarmouth might have an effect on the current issues on the Broads.
Ironically, the Fens in general actually have the opposite problem. They're drying out and dropping substantially due to shrinkage of the land. In the mid 19th century, posts were hammered into the earth down to ground level at Holme Fen. When they first went in, the ground was dropping 9 inches a year. They're now 4m above ground level due to peat shrinkage as the land dries out because of the drainage schemes.
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4 hours ago, Aboattime said:
Theres a well known Broads boat yard owner who is building his own boat to have a go at the record.Last time i saw it, was taking shape, he had sourced his jet engines,He was confident of getting the speed,but his main concern was stopping!
His construction techniques seem more appropriate for the challenge than Longbow's, but you have to question whether he'll ever manage to take to the water with it. Must be 10+ years now and it seems like progress may have stalled a bit?
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16 hours ago, BrundallNavy said:
Fix or Repair Daily.
Found On Roadside Dead
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My grandfather was a bomber pilot in WW2 and involved in one of the raids which was instrumental in stopping Germany, so not suggesting anything remotely along those lines. It's just abundently clear to me that population growth is out of control and that something needs to happen to slow it down, otherwise all of the lesser things we try and do like recycling, etc are largely pointless.
I think it's in the film "Age of Stupid" (but might be Fahrenheit 911) where they point out that developed countries are using something like 4 times as many resources as the world can sustain.
There's a lot of left wing propaganda in the green movement, but I'm more right leaning and can still see there are a lot of truths within the narrative. The big problem is it needs a unified, global and unselfish response to address - but modern society seems incapable of behaving in that way.
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The big concern with these things is what happens to the materials as they degrade and microplastics. There are already pretty shocking levels of microplastics in a lot of our rivers and it's fairly self-evident that they're significant carcinogens.
I went through a big eco-friendly phase, growing and hunting most of my food, composting everything, etc. I gave a lot of it up in the end, as it's fairly clear that recycling, etc is all pretty pointless until we realise and accept that the only way to mitigate damage to nature is to curb and possibly reduce population numbers.
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12 hours ago, kpnut said:
7). I then proceeded to notice that there’s a good tarmac pavement all the way to Horning
I was just about to say something along the same lines, as your earlier comment about the lack of path puzzled me slightly.
Hoveton primary school (which must have been closed 40+ years now) used to be on the left just before Palmer's Lane coming from Hoveton. I think the pavement probably exists because some of us used to walk to school from Hoveton and others from Horning.
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BSS Certificate Question :- Transplanting A Touring Caravan Wiring Loom Into A Boat.
in Technical Questions and Answers
Posted
Sorry, but that's plain wrong. An older charger will be exactly as you describe it - basically just a PSU, which simply bulk charges. They can't be left connected for prolonged periods and are far from optimal in terms of charging performance.
Modern units may use similar components (in reality far more SMT and much more complex microprocessor control), but charger technology is radically different. Good units detect battery state, desulphate, destratify, ramp up to bulk charge then float charge. The best units switch to a long term pulse charge, also automatically dropping back into bulk charging if the battery voltage drops. This gives quite a few major benefits:
I managed a business selling one of the market leading brands for quite a few years, and have supplied 10s of thousands of units which are OEM spec for BMW, Bentley, Mercedes, Aston Martin, etc, etc (plus a marine range). A lot of these vehicles have to have more complex charging as they tend to suffer damage with traditional units.