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Old 22-03-2012, 20:02   #1
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Lagoons Have Cheap Brass Thruhulls

Ive been searching fora used Lagoon Cat. In my research I discovered that these boats-including very expensive recent large ones have very cheap sure to fail very costly to correct BRASS Thru hulls and BRASS SEACOCKS!!!!!!!!!!!!!!!!!!!!!!!!!!!I have photos of a recent survey of a 2007 Lagoon 420 showing this absolute mess!!! Goodby MR Lagoon!
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Old 22-03-2012, 20:10   #2
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Re: LAGOONS HAVE CHEAP BRASS THRUHULLS

Surprise, surprise! No I have another reason to buy an older boat and refit, or DIY. Not that I wasn't already convinced!
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Old 22-03-2012, 20:22   #3
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Re: LAGOONS HAVE CHEAP BRASS THRUHULLS

Quote:
Goodby MR Lagoon!
Because its oh so hard to replace a through hull with bronze, marelon or a glassed in tube
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Old 22-03-2012, 20:37   #4
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Re: LAGOONS HAVE CHEAP BRASS THRUHULLS

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Ive been searching fora used Lagoon Cat. In my research I discovered that these boats-including very expensive recent large ones have very cheap sure to fail very costly to correct BRASS Thru hulls and BRASS SEACOCKS!!!!!!!!!!!!!!!!!!!!!!!!!!!I have photos of a recent survey of a 2007 Lagoon 420 showing this absolute mess!!! Goodby MR Lagoon!
I just had a boatyard replace 3 thruhulls with Groco bronze ones at a total cost of about $1000 including labour.

Lets say the Lagoon 420 has 10 thruhulls, for the sake of argument. That would be $3K to replace them.

A 2007 Lagoon 420 costs about $450K. That means to have the thruhulls replaced will cost you 0.7% of the purchase price.
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Old 22-03-2012, 21:03   #5
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Re: LAGOONS HAVE CHEAP BRASS THRUHULLS

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I just had a boatyard replace 3 thruhulls with Groco bronze ones at a total cost of about $1000 including labour.

Lets say the Lagoon 420 has 10 thruhulls, for the sake of argument. That would be $3K to replace them.

A 2007 Lagoon 420 costs about $450K. That means to have the thruhulls replaced will cost you 0.7% of the purchase price.
Unless you include the cost of haulout. Or any potential damages due to a failed thru hull. And as long as you think this sort of thinking was used ONLY for this one part of the build.
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Old 22-03-2012, 22:21   #6
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Re: LAGOONS HAVE CHEAP BRASS THRUHULLS

AHHH if ya can't replace your own thru hulls ya sure can't complain about the cost !! most of us would buy all new thru hulls and replace them all and do the bottom at the same time !!! just my 2 cents
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Old 22-03-2012, 22:22   #7
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Re: LAGOONS HAVE CHEAP BRASS THRUHULLS

Don't be silly!

Of COURSE we can complain.

We have to pay anyway, we darn well for sure can complain!!!

; -D
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Old 22-03-2012, 22:23   #8
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Re: LAGOONS HAVE CHEAP BRASS THRUHULLS

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Unless you include the cost of haulout.
It's a cat
Do it between tides on a nice bit of beach.
Dont pull 'em all at once
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Old 22-03-2012, 23:34   #9
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Re: LAGOONS HAVE CHEAP BRASS THRUHULLS

I would be really nervous knowing there cannot be any unanticipated problems by the time the tide rises. Stuff happens.
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Old 23-03-2012, 01:30   #10
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Re: LAGOONS HAVE CHEAP BRASS THRUHULLS

Would only be an issue if not competent to do the job. Then pay a professional.
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Old 23-03-2012, 03:19   #11
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Re: LAGOONS HAVE CHEAP BRASS THRUHULLS

It may be that this is typical of EU production boats. The ISO standard only requires the thru-hulls be able to last 5 years.

As noted by others, its an easy fix.
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Old 23-03-2012, 03:52   #12
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If you can not replace 10 through hulls for less than $3000 I have just found my new business.
I will have a Sunreef 70 power cat by Christmas.
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Old 23-03-2012, 04:03   #13
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Re: LAGOONS HAVE CHEAP BRASS THRUHULLS

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If you can not replace 10 through hulls for less than $3000 I have just found my new business.
I will have a Sunreef 70 power cat by Christmas.

LOL. Don't tell anybody it can be done in the water either.
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Old 23-03-2012, 04:25   #14
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Re: LAGOONS HAVE CHEAP BRASS THRUHULLS

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Originally Posted by MarkSF View Post
I just had a boatyard replace 3 thruhulls with Groco bronze ones at a total cost of about $1000 including labour.

Lets say the Lagoon 420 has 10 thruhulls, for the sake of argument. That would be $3K to replace them.

A 2007 Lagoon 420 costs about $450K. That means to have the thruhulls replaced will cost you 0.7% of the purchase price.
really???...You couldn't do this yourself???
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Old 23-03-2012, 04:50   #15
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Re: LAGOONS HAVE CHEAP BRASS THRUHULLS

Here's a relevant article http://michel-christen.com/2T-H.pdf

" ISO 9033-1:1994 standard (the EU standard that Lagoons should be built to) that says: "Through-hull fittings for water shall be corrosion resistant, defined as material used for a fitting which, within a service time of five years, does not display any defect that will impair tightness, strength or function."
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