Cruisers Forum
 


Join CruisersForum Today

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 02-01-2019, 18:28   #1
Senior Cruiser
 
Dave_S's Avatar

Cruisers Forum Supporter

Join Date: Jun 2016
Location: Brisbane Australia
Boat: Schionning Waterline 1480
Posts: 990
How watertite are these inspection hatches ?

I'd like to fit a couple of these hand sized screw in hatches into the back, top face of the lowest level of my sugar scoops to alow me access to thru-fix a swim ladder fittings and fittings for the rudder release also to check/remove any water that may get passed the fixing holes over time.

They will regularly have green water swirling over the top of them will they stay sealed ? Is there a smarter way ?

It's just going into a small area, maybe 50lt capacity which is fully sealed so water won't reach the strip plank.
Attached Thumbnails
Click image for larger version

Name:	6-Plastic-Marine-Access-Inspection-Hatch-Boat-Deck-Plate-Detachable-Cover.jpg_640x640.jpg
Views:	100
Size:	58.0 KB
ID:	183090  
__________________

__________________
Regards
Dave
Dave_S is offline   Reply With Quote
Old 02-01-2019, 18:34   #2
Registered User

Join Date: May 2010
Location: Sydney Australia
Boat: Fisher pilothouse sloop 32'
Posts: 1,142
Re: How watertite are these inspection hatches ?

Quote:
Originally Posted by Dave_S View Post
I'd like to fit a couple of these hand sized screw in hatches into the back, top face of the lowest level of my sugar scoops to alow me access to thru-fix a swim ladder fittings and fittings for the rudder release also to check/remove any water that may get passed the fixing holes over time.

They will regularly have green water swirling over the top of them will they stay sealed ? Is there a smarter way ?

It's just going into a small area, maybe 50lt capacity which is fully sealed so water won't reach the strip plank.
Hi, have you considered the stainless version, they remain rigid and sealed, no distortion on install and have a socket cast into the face that takes a winch handle to undo/tighten.
__________________

__________________
Rob aka Uncle Bob Sydney Australia.

Life is 10% the cards you are dealt, 90% how you play em
Uncle Bob is offline   Reply With Quote
Old 02-01-2019, 18:55   #3
Senior Cruiser
 
Dave_S's Avatar

Cruisers Forum Supporter

Join Date: Jun 2016
Location: Brisbane Australia
Boat: Schionning Waterline 1480
Posts: 990
Re: How watertite are these inspection hatches ?

Quote:
Originally Posted by Uncle Bob View Post
Hi, have you considered the stainless version, they remain rigid and sealed, no distortion on install and have a socket cast into the face that takes a winch handle to undo/tighten.
Thanks Bob

They sound nice, I'll look them up, maybe heavy ?
__________________
Regards
Dave
Dave_S is offline   Reply With Quote
Old 02-01-2019, 19:40   #4
Registered User

Join Date: Mar 2016
Posts: 78
Re: How watertite are these inspection hatches ?

I have one of those on my foredeck and it is watertight, and I have taken plenty of green water over the bow after many thousands of miles.
Caddy Shack is offline   Reply With Quote
Old 02-01-2019, 19:45   #5
Registered User
 
funjohnson's Avatar

Join Date: Mar 2010
Location: Out cruising again (Azores until spring)
Boat: 37' aluminum pilothouse "Elements"
Posts: 2,174
Re: How watertite are these inspection hatches ?

The Beckson screw in ports like you've shown are water tight and would work well for this application. I wouldn't put one below the waterline, but above would be just fine.

Their rectangular hatches are not watertight after a year or two.

Matt
__________________
Youtube MJ sailing - Vlog
MJSailing.com - Written Blog
Rebuilt Aluminum Boat Over 2 Years... Now Back Cruising!
funjohnson is online now   Reply With Quote
Old 02-01-2019, 19:57   #6
Registered User

Join Date: May 2010
Location: Sydney Australia
Boat: Fisher pilothouse sloop 32'
Posts: 1,142
Re: How watertite are these inspection hatches ?

Quote:
Originally Posted by Dave_S View Post
Thanks Bob

They sound nice, I'll look them up, maybe heavy ?
Definitely heavier than plastic , don't warp or twist on install if the glass is not flat, don't deteriorate from UV and you can't accidently damage them. A one time purchase and install given the location.
__________________
Rob aka Uncle Bob Sydney Australia.

Life is 10% the cards you are dealt, 90% how you play em
Uncle Bob is offline   Reply With Quote
Old 02-01-2019, 20:03   #7
Registered User

Join Date: Apr 2017
Location: Sea of Cortez
Boat: Leopard 38+; Corsair F-31UC
Posts: 18
Re: How watertite are these inspection hatches ?

Go for it. Haven't had a problem with mine.

Don

Click image for larger version

Name:	IMG_20181118_083635528_HDR.jpg
Views:	129
Size:	408.8 KB
ID:	183092
Trvlmedic is offline   Reply With Quote
Old 03-01-2019, 02:05   #8
Senior Cruiser
 
Dave_S's Avatar

Cruisers Forum Supporter

Join Date: Jun 2016
Location: Brisbane Australia
Boat: Schionning Waterline 1480
Posts: 990
Re: How watertite are these inspection hatches ?

Thanks all
__________________
Regards
Dave
Dave_S is offline   Reply With Quote
Old 03-01-2019, 03:08   #9
Registered User

Join Date: May 2012
Location: Tweed Heads,N.S.W. Australia
Boat: Dinghies to Admirals Cup contender,the lot.
Posts: 79
Re: How watertite are these inspection hatches ?

there is little difference in the weights of plastic and stainless......have used them only on tank tops inside the yacht with no leakage......found the plastic ones bind heavily....I used a specialist high vacuum grease as a preventative with success.....but the finger purchase is so small that I made angle aluminium brackets and through bolts...which fixed that.....but the tank tops were not where foot traffic occurred......unlike your situation...I would go with stainless.....the winch handle is a good persuader.....and with lanoline grease....and carry a spare O ring or two.....
grahamb is offline   Reply With Quote
Old 03-01-2019, 14:02   #10
Registered User

Join Date: Jan 2011
Location: Sydney
Boat: Farr 1020
Posts: 266
Re: How watertite are these inspection hatches ?

I fitted a stainless one on cockpit sole last year.
I chose the one with 2 small indents and also bought the tool to fit because I did not want a winch handle fitting under my bare foot. It is easy to walk on but still gets hot on bare foot yet I am happy to have less of an indent. I do not like sharp edges.
I have the plastic ones in anchor well and they bind badly, had to destroy one to open it but have a Riley plastic one on a bulkhead that seals fine.
I would prefer stainless on a walking surface but would avoid the winch handle type.
Roger
Djarraluda is offline   Reply With Quote
Old 03-01-2019, 14:33   #11
Registered User
 
flyingfin's Avatar

Join Date: Oct 2016
Location: Cape Haze,FL
Boat: Carver,Cobia,Nacra
Posts: 341
Re: How watertite are these inspection hatches ?

Is the surface you will be mounting to flat? What diameter is the port?
To be waterproof, it will need excellent caulking to a clean, flush surface. The rubber o-ring will need to be coated with vaseline everytime it is opened/closed. You should also consider a secondary latch to prevent it from backing out. These hatches should not be in a location where crew can walk on them, and should have UV stabilizer in the plastic. In addition, buy extra o-rings, rebed the hatch every 4-5 years and replace the entire hatch every 8-10 years. Plastic dont like the sun.
flyingfin is offline   Reply With Quote
Old 04-01-2019, 05:59   #12
Senior Cruiser
 
GordMay's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 33,702
Images: 240
Re: How watertite are these inspection hatches ?

Beckson pry-out and screw-out deck plates in all sizes are now certified by independent lab testing to exceed FIVE certifications!
ABYC H-3 Watertightness, & ABYC H-4 Cockpit Drainage Systems
NEMA 250 6P Submergence
ISO 12216, ISO 11812

NEMA 6P (Occasional prolonged submersion) ➥ https://www.nema.org/Products/Docume...sure-types.pdf
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is online now   Reply With Quote
Old 20-01-2019, 02:09   #13
Registered User

Join Date: May 2013
Location: Mangareva, French Polynesia
Boat: Heritage West Indies 36
Posts: 572
How watertite are these inspection hatches ?

Not sure about lab testing, but I have been underwhelmed by these hatches. Beckson. Installed three of them in the tops of my fibreglass water tanks and they all leaked after about six months. Put Vaseline on the seals. Leaked again after a few months. Sealed them in with silicone. That has done the trick, but now I cant ever open them again. If I did it again Id just put a solid inspection hatch on and seal it down with silicone (something watertight but not too adhesive). When I want to get access Id just break the silicone seal, then clean it up, re-seal and screw it down again.

I should have known really. I worked for a salvage company for 5 years and one of the primary causes of water getting into the bilges and sinking a boat was leaking hatches. Usually it was the big square ones that one often finds at the stern of outboard-powered motorboats. As a previous post has suggested, they leak badly after a short time. But sometimes it was the smaller round ones like the one you want to use. Often neglected, however, with degraded seals.
DefinitelyMe is offline   Reply With Quote
Old 20-01-2019, 06:03   #14
Marine Service Provider

Join Date: Sep 2012
Location: Virgin Islands
Boat: 1999 Leopard 45, 45 foot cat, 1980 Hunter 33, 33 foot monohull
Posts: 693
Re: How watertite are these inspection hatches ?

I just did EXACTLY the same project, two weeks ago, for exactly the same reason! Sugar scoop, swimming ladder, access to the nuts of the thru bolts, round Beckson inspection ports, big enough to put your hand through! Above the waterline but awash when underway.



Give me a week or so and I will report. Interesting to be asked just this question!
__________________

contrail is offline   Reply With Quote
Reply

Tags
hatch, inspection, water

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
What kind of hatches are these? mrybas Construction, Maintenance & Refit 1 05-04-2017 06:27
Interlux Watertite Epoxy Filler CCR2580 Monohull Sailboats 0 21-02-2017 08:02
System Three Quikfair vs. Interlux Watertite Epoxy Filler redpointist Construction, Maintenance & Refit 22 04-06-2016 15:10
where can i get these hatches? scoobert Construction, Maintenance & Refit 1 14-07-2013 06:37
Beneteau Inspection Hatches on Water Tanks capbuckandpippy Monohull Sailboats 4 11-03-2012 19:12



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 08:54.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.