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Forum: Challenges 04-05-2021, 04:00
Replies: 56
Views: 3,702
Posted By Marqus
Re: Removed check valve from bilge pump- now it won't stop running

I'm with John's reply her - only the upper float switch can turn the pump on.

The setup achieves what an intelligent float switch (like Water Witch) does by using an electronic delay. Instead of...
Forum: Challenges 03-05-2021, 20:04
Replies: 56
Views: 3,702
Posted By Marqus
Re: Removed check valve from bilge pump- now it won't stop running

Thanks for the detail; needs careful reading but a lot of solid info packed in this post.
Forum: Challenges 03-05-2021, 19:49
Replies: 56
Views: 3,702
Posted By Marqus
Re: Removed check valve from bilge pump- now it won't stop running

Got it, thanks John. Absolutely no typo, just a very nice and clever setup by Panacea.
Forum: Challenges 03-05-2021, 18:39
Replies: 56
Views: 3,702
Posted By Marqus
Simple time delay for bilge float switch

Acknowledging that the solutions using two pumps, a check valve or an intelligent float switch can all work, for some simple scenarios (e.g. a skiff tied to a dock unattended) I have often wondered...
Forum: Challenges 03-05-2021, 18:06
Replies: 56
Views: 3,702
Posted By Marqus
Re: Removed check valve from bilge pump- now it won't stop running

Panacea, there could be a graphical typo in your circuit - doesn't seem like the lower float switch will ever turn the pump on?
Forum: Seamanship & Boat Handling 12-10-2019, 05:42
Replies: 98
Views: 8,825
Posted By Marqus
Re: Very small water-maker oder Big one for very fast refilling?

Here's a quote from the Schenker web site:
"A Schenker watermaker ..... does not require adjustments, is totally silent and vibration-free."

In the light of Jkleins's observation about the PS 40...
Forum: Monohull Sailboats 24-09-2019, 02:18
Replies: 74
Views: 13,732
Posted By Marqus
Re: Kayak vs. Dinghy

Ok Hopper, touch slippery but quite right. I'll have to blame Jimbo and Ungvar then for sucking me in to their promotion of arctic style kayaks ...

Now I actually quite like those arctic kayaks...
Forum: Monohull Sailboats 23-09-2019, 23:21
Replies: 74
Views: 13,732
Posted By Marqus
Re: Kayak vs. Dinghy

Yes, very nice Hopper.

But then there's a subtle but significant difference between wriggling your legs into an enclosed kayak with smallish cockpit (so designed to cope with cold water and...
Forum: Monohull Sailboats 23-09-2019, 19:30
Replies: 74
Views: 13,732
Posted By Marqus
Re: Kayak vs. Dinghy

Many of these arctic style kayaks have quite small cockpit openings to mimimize water coming in and keep legs warm. If your boat doesn't have a swimming platform, it could be tricky to enter from a...
Forum: Monohull Sailboats 22-09-2019, 23:29
Replies: 74
Views: 13,732
Posted By Marqus
Re: Kayak vs. Dinghy

Yes, very nicely packable.

Going off on a tangent:
When you look at 50sec into the video, isn't it a bit frustrating how videos that show paddle boards used in stand-up mode, always find glassy...
Forum: Construction, Maintenance & Refit 21-09-2019, 21:24
Replies: 2
Views: 575
Posted By Marqus
12v Air Compressor - product search

When looking at COMPACT air compressors (not the big ones with bulky tanks), the typical compact 12v model sold by auto stores is made primarily for inflating tyres (see pic below).

I have been...
Forum: Challenges 03-09-2019, 02:56
Replies: 39
Views: 5,795
Posted By Marqus
Re: Lawsuit against Boatyard

Question: In order to avoid situations like the OP's, how realistic is it to agree, at the start of a boat yard project, that:

(1) The owner can inspect work done once a day (if he wishes to)...
Forum: Construction, Maintenance & Refit 17-08-2019, 07:27
Replies: 40
Views: 8,602
Posted By Marqus
Re: Circle Cutter - any tricks to cut plastic ?

Some feedback on my circle cutting endeavours:

(1) Firstly, I changed the plastic I am using from 2mm to 3.1mm thick (1/8 inch). So it makes the job tougher.

(2) The vernier caliper method...
Forum: Construction, Maintenance & Refit 15-08-2019, 22:13
Replies: 40
Views: 8,602
Posted By Marqus
Re: Circle Cutter - any tricks to cut plastic ?

Thanks for every reply, gents. Always learn a lot on CF.

If I was to use a hole saw, I will use a lube (like kerosene, thanks for suggestion) but not entirely sure how practical it's going to be...
Forum: Construction, Maintenance & Refit 15-08-2019, 17:34
Replies: 40
Views: 8,602
Posted By Marqus
Circle Cutter - any tricks to cut plastic ?

Hi all,

I need to cut an 86mm circle in thin acrylic sheet (2mm thick) to fit an instrument. Preferably a neat, tight fit.

I have a set of hole saws but nothing at 86mm. My abilities with...
Forum: Construction, Maintenance & Refit 09-01-2019, 08:49
Replies: 62
Views: 6,184
Posted By Marqus
Re: Frozen SS Screws Securing Winch to Mast

Acid sounds like a worthy idea, but the logistics look difficult to me, though I'm always keen to learn new methods - especially if they're quick.

Looking at the photo showing the 5 slotted head...
Forum: Construction, Maintenance & Refit 07-01-2019, 20:07
Replies: 62
Views: 6,184
Posted By Marqus
Re: Frozen SS Screws Securing Winch to Mast

Thanks for explaining, Peter, good info.
Forum: Construction, Maintenance & Refit 07-01-2019, 05:20
Replies: 62
Views: 6,184
Posted By Marqus
Re: Frozen SS Screws Securing Winch to Mast

Heard of this but haven't done it myself, so just wondering, Peter, from your experience, how long are we talking here keeping the short going - should you limit it to something like 5 seconds or can...
Forum: Electrical: Batteries, Generators & Solar 17-12-2018, 23:38
Replies: 40
Views: 2,862
Posted By Marqus
Re: Bad battery or bad charger?

Great post Mitiempo, we needed the nitty gritty level here and you provided just that.

Now I'm being a bit lazy here not downloading the manual, but anyone here knows whether these Blue Seas set...
Forum: Electrical: Batteries, Generators & Solar 28-11-2018, 22:29
Replies: 40
Views: 2,862
Posted By Marqus
Re: Bad battery or bad charger?

Good point.
And as John points out, during Bulk charging the voltage level is always below Absorption voltage level.

Certainly seems a bad sign that Caleuche's mastervolt charger was putting...
Forum: Electrical: Batteries, Generators & Solar 27-11-2018, 19:33
Replies: 40
Views: 2,862
Posted By Marqus
Re: Bad battery or bad charger?

Given the OP's info so far, to me it's a bit early to condemn the Mastervolt charger.

If the battery was in some way deficient, could the charger not have (by design) pushed up to 16v in BULK mode?
Forum: Electrical: Batteries, Generators & Solar 27-11-2018, 17:26
Replies: 40
Views: 2,862
Posted By Marqus
Re: Bad battery or bad charger?

This Mastervolt Magic seems a versatile bit of kit. Can do a few things, one of which is a 3-stage DC-to-DC charger (see diagram below).

Seems like it should ABSORB around 14.2v and FLOAT around...
Forum: Construction, Maintenance & Refit 24-11-2018, 18:20
Replies: 41
Views: 8,334
Posted By Marqus
Re: Bolt Threads in Epoxy

Thanks HOPCAR and JOHN61 for clarifying. So those Sert-a-Thread nuts are known as "rivnuts" in my area.

And if using rivnuts specifically with no epoxy, you probably want to match the grip range...
Forum: Construction, Maintenance & Refit 24-11-2018, 07:25
Replies: 41
Views: 8,334
Posted By Marqus
Re: Bolt Threads in Epoxy

Quite keen to see what these look like, but for whatever reason cannot access the homedepot.ca site you link to (tried two browsers; may be a geo-restriction). Can't find them on hpaulin.com web...
Forum: Construction, Maintenance & Refit 24-11-2018, 07:20
Replies: 41
Views: 8,334
Posted By Marqus
Re: Bolt Threads in Epoxy

Correct, not accessible.
Showing results 1 to 25 of 208

 
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