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Got a technical question or a boating query? Post your quandaries here and pick the brains of the WW team. You can also add your answers to others' questions, or browse through previous answers.

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Battery maths don't add up!

I have been monitoring my battery voltage levels recently and the battery voltage level seems to be far lower than what I would expect.
If I charge the batteries fully from a mains three step charger and disconnect this and leave them overnight the voltage has dropped to about 12V.
I have calculated the load to be about 50Ah overnight and the batteries are three 110Ah lead acid sealed leisure connected in parallel and are about 3 months old.
To me the voltage should not be dropping that low. I have noticed the main battery lead is connected to just the first battery and the other two are connected in parallel to this. Could this be a problem or is it possible I already have a dead battery?

Asked by: Adam Savory  | Wednesday 28 October, 9.23am | 1 answer

Water tank size for constant cruiser?

I am considering getting a narrowboat in London and was wondering, if I'm a constant cruiser, what size water tank should I get, and how regularly do you recommend I top it up/clean it out?

Asked by: Chloe T  | Tuesday 27 October, 5.29pm | 2 answers


With an inverter, 300w - 600w peak, can you wire it directly into a 12v power point on the boat? Say an existing 12v plug socket or has it got to be wired direct to the battery?

Asked by: Jason Hulme  | Thursday 22 October, 7.02pm | 1 answer

Generator Power

I'm considering buying a generator for my boat. I'm reading a lot about the "earthing" of them. I'm in a marina with pontoons. How do I earth it as no bank or earth is near?

Asked by: Jason Hulme  | Sunday 18 October, 8.16am | 1 answer


I have a collection of waterways world magazines. 245 in total, including the very first editions. I would like £100 for these. If you know of anyone who is interested would you please pass on my email address: margaretor@btconnect.com or my mob: 07787748433. Thank you. Margaret

Asked by: Margaret O'Riley  | Saturday 17 October, 5.07pm | no answers yet - add one

Water System

Just changed the hot water tank old one was 75lts new one 55lts now the pump over runs for a long time what size accumulator do I need to fit I have 15.25mts narrow boat

Asked by: Patrick Moran  | Friday 16 October, 7.58pm | 2 answers

Narrowboat Anchor for River Use.

What would be a suitable anchor for a 60 ft narrowboat. Weight and type of anchor. Weight and length of chain. Size and length of rope. Where to attach on the boat. Stern is handy for the helmsman. Please reply to jim@caudle.co.uk

Asked by: Jim Caudle  | Tuesday 13 October, 2.42pm | 2 answers

Honda Diesel GD1250 21bhp

I've just bought a 24ft narrowboat that came with the above engine. Can anyone tell me where I can get a user manual from?
Not to sound like a cheap skate, preferably free of charge.
Cheers Jase

Asked by: Jason Hulme  | Tuesday 6 October, 1.29pm | 4 answers

Reducing engine noise

I have cruiser stern with a barrus shire 50hp, which I have tyred to reduce the sound with stick on foam/rubber/foil insulation. This has reduced the sound quite a lot, but inside the boat the sound is still quite loud. On yachts the engine is insulated very close to the engine, and i was wondering if enclosing the engine within the engine bay would be the next step. I would like to know if it's safe to do regarding engine temperature. I was thinking if it was OK, to vent out off the air intake on the airfillter.The back deck has also been raised by about 150mm.The exhaust is standard, but was told the hospital ones don't make much difference!
many thanks

Asked by: anthony spanswick  | Monday 5 October, 8.37pm | 3 answers



Asked by: MICK BAINES  | Saturday 3 October, 11.45am | 1 answer

Boat review with heat exchanger fitted.

can you tell me which magazine had a boat review with a adler heat exchanger fitted.

Asked by: Rowan Marriott  | Tuesday 29 September, 11.42pm | 1 answer

Pump out toilet

Hi - any thoughts on the best pump out toilet to replace a cassette. It will have to be fitted on the top of the black water tank already installed in the boat's bathroom at the stern
Thanks BG

Asked by: bill goad  | Monday 14 September, 5.06pm | 1 answer


Should the hot water enter the skin tank at the top or bottom of tank mine is going to the bottom.I Have I have long pipes from engine room to skin tank. Having cooling problems.

Asked by: Alan Milchard  | Sunday 13 September, 8.44pm | 3 answers

Short Jetty

I am looking for tips for mooring against a short jetty (less than half the length of the boat).
I only have T mooring points on the 2 rear edges and 1 front centre. At the moment I am struggling to stop the front swinging out without having a line rubbing the side of the cabin. The boat is backed in as I don't have a front door.
Can I drill into the gunnel and add a point midway down?
Any advice would be appreciated.

Asked by: Adam Savory  | Tuesday 8 September, 8.57pm | 3 answers

Adding an engine

I'm looking to buy my first canal boat and have fallen in love with a very very old one that is a liveaboard but has never had an engine. Unfortunately I don't have a horse to pull it along like they used to so I was wondering if it is ever possible to just *add an engine*? If not I will try my best to get a bit more realistic. Thank you boaters.

Asked by: sazzlef  | Friday 28 August, 6.48pm | 1 answer

Window catches fall off

Has anyone found a better way than I have of fixng aluminium window catches to the glass panes? I use superglue but they're forever falling off.

Asked by: Paul Taylor  | Sunday 23 August, 2.13pm | 2 answers

Springer Hull Dateing

How can you date a Spinger narrow boat hull

Asked by: John Dymond  | Sunday 16 August, 4.50pm | 1 answer


Hi, when stopping or reversing the sound from the prop changes. It sounds like gravel hitting the boat or maybe air bubbles. Is this normal!
I have a 18x15 prop with around 1 1/4" top clearance using a 50 hp shire 150 gearbox. I did have a 18x10 prop and that did the same, I changed it because it was under proped and I bent the old one. Many thanks

Asked by: anthony spanswick  | Wednesday 12 August, 7.28pm | 4 answers

single-handed boat hire

I would like to see if I would enjoy a narrowboat. Everywhere I look it says try a holiday first but I am on my own. Does anyone know of a company which would hire to a single-hander?

Asked by: Tony Child  | Tuesday 11 August, 8.45am | 2 answers


I would like to fit a larger capacity alternator to my 3 cylinder Barrus shires diesel has anyone done this and if so what alternator is possible? I really would like 120 or more

Asked by: ian  | Monday 10 August, 4.22pm | 1 answer

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