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Groco Bronze Thru-Hull Scoop Strainers
$32.52In Stock
Groco Bronze Thru-Hull Scoop Strainers
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Groco Bronze Thru-Hull Scoop Strainers Customer Questions and Answers

7 of 7 Questions

Question

Do you need to put the small mounting screws or can just do 5200 and a seacock mounted snugly inside the 1 inch thick hull? 26ft Chaparral

Asked on 06/22/2018 by H from North Carolina

Top Answer

Unless there is a specific reason not to use the screws, it is a good idea to have the additional mechanical strength of the screws. Though 5200 is considered permanent, if it does not get a great bond from the beginning, you will want the reliability of the screws.

Answered on 06/28/2018 by JD Tech Associate
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Answer

I used small mounting screws, but the bottom of my hull is pure glass. if it were cored I probably wouldn't have bothered. I am 99% sure 5200 and a threaded seacock would be sufficient, but I figured I was going to all this trouble to install a top dollar thru hull, the more screws the better. I wish they made a flanged seacock that lined up bolt wise and could be thru bolted from outer hull to inner hull sandwiching everything together, but they don't in 3/4 or 1" to best of my knowledge. good luck.

Answered on 06/22/2018 by jnatale

Answer

I did not use the external mounting screws as I did not want to make additional holes in the hull. Just tighten the seacock securely and use screws in its base. I did not use the external mounting screws as I did not want to make additional holes in the hull. Just tighten the seacock securely and use screws in its base.

Answered on 06/22/2018 by james.frens

Answer

We used the small screws and for this reason. At some point you may need to service your valve and we were afraid that the 5200 would not provide enough hold back when it came time to unscrew the valve. We only used 2 screws per thru hull though.

Answered on 06/22/2018 by twojumpups

Answer

Use the screws, the 5200 is not intended for mounting. Bob Diotte

Answered on 06/22/2018 by rmdiotte
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Question

is the grid part of the scooper installed facing forward or aft?

Asked on 08/24/2015 by robert novey

Top Answer

The grid is installed facing forward

Answered on 08/24/2015 by WILLIAM WOLL
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Answer

It could be installed either way. I installed it for a pump intake to provide a pressure source for washing off the deck, de-gunking the anchor, etc. I chose to install it grid facing aft, thinking that this would lessen it getting clogged up with crud while I sail. But there is nothing I see about the strainer itself that dictates that it be installed in any particular orientation.

Answered on 08/24/2015 by T N

Answer

Strainer grill faces forward

Answered on 08/24/2015 by MARTIN SALDANA

Answer

The strainer should face forward so water passing along the hull will be scooped into the pipe.

Answered on 08/24/2015 by STEPHEN CHRISTIANSEN

Answer

This depends on what you're trying to do. Typically, a scoop is installed facing forward, in order to "scoop" water into the through hull. This would be required for a water maker for example, because they need as much water pressure coming into the boat as possible. If you're just trying to prevent stuff from getting into the through hull, you can just install a separate bronze strainer over the existing through hull opening.

Answered on 08/24/2015 by JOHN SACCO
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Question

When u say 1" diameter, what are u referring to, the id or od, i need one of these with a 1" id?

Asked on 11/04/2014 by rakeeb ali

Top Answer

The 1" diameter is the inside diameter.

Answered on 11/04/2014 by Gary Schoenfeldt
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Answer

I am not associated with Groco or Jamestown, I am only a consumer as you are and answered the question proposed to me through their consumer answering service. Please contact Jamestown to ensure you are getting the correct thru hull

Answered on 11/04/2014 by JAMES MASHBURN

Answer

I ordered the 1", from what ur email says the 1" is 1" id, please make sure before u ship it

Answered on 11/04/2014 by rakeeb ali

Answer

Thru hulls are made of pipe and pipe is called out by the ID, whereas tube is called out by the OD... i.e. a one inch tube is one inch OD. A 1" pipe is 1" ID and about 1-3/8" OD depending on the schedule (wall thickness) of the pipe used.

Answered on 11/04/2014 by JAMES MASHBURN
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Question

What do you use for a spacer inside the boat to use up some of the threads??

Asked on 05/04/2012 by Tom Rhamy

Top Answer

I would not use plywood but the marine wood, plastic! It will never rot...

Answered on 05/14/2012 by DOUG KROESCHE
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Answer

Tom, I used a piece of 3/4 marine plywood fiberglassed to the inside of the hull. Then I threaded a flanged seacock valve to the exposed threads and used stainless lag bolts to secure the valve. The retaining nut for the scoop needs to be countersunk in the plywood to permit the flange to sit flush also use plenty of 5200 sealant to secure and prevent leaks.

Answered on 05/09/2012 by MIKE ROBERTSON

Answer

1" Marine Wood. About 4 X 6 inches.

Answered on 05/14/2012 by DOUG KROESCHE

Answer

I glue a piece of marine plywood to the hull then fberglasss it to seal it. Then drill the hole thru both.

Answered on 05/08/2012 by MARTIN SALDANA
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Question

What type of thread does this have? Can i remove nut and screw directly into 3/4" groco flanged seacock--i.e., are the threads compatible between the two?

Asked on 07/12/2018 by Mickey from KY

Top Answer

Yes, these are designed for this type of application. You may have to cut the threaded portion on the strainer to meet the necessary length for your application, and generally you would seal the threads as well to prevent water intrusion, but the threads will work with the seacock.

Answered on 07/13/2018 by JD Tech Associate
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Answer

man, I am 99% certain that is what I did. I have a groco 3/4" thru hull paired with it, so I have very little doubt that's what I did. my boat is solid glass on bottom, maybe 3/8'. I drilled hole, bedded mushroom with 4200 and tacked it in place with two screws. then put a slab of G10 on the inside to spread the load a bit and cranked my thru hull down onto it. no nut if memory serves. more 4200 on the inside joint. ive kicked at it a little bit and its not going anywhere. the G10 disc is big enough where I could bed screws or tap and die into it if I wanted from the inside but it hasn't been done yet. send me another question with your contact info and ill send you pics of what ive got if this doesn't make sense.

Answered on 07/12/2018 by jnatale

Answer

I am an amateur boat builder.  There are two types of pipe thread; tapered and straight. NPT is the abbreviation meaning National Pipe Taper, and NPS means National Pipe Straight.  People mistake NPS as meaning National Pipe Standard. The thru hull water scoops are straight thread. I removed the nut and screwed a seacock having NPT thread down onto the scoop.  In so doing the thread will tighten at a certain point.  Hope this has been helpful.  Remember I am learning myself.

Answered on 07/12/2018 by wegeman07
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Question

is this the correct strainer that a ball or gate valve will screw onto?

Asked on 11/09/2015 by shane lowell

Top Answer

Yes

Answered on 11/09/2015 by Joe Spadaro
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Answer

Yes it has a tapered pipe thread at the end that will thread into a standard pipe thread fitting or valve.

Answered on 11/09/2015 by T N

Answer

yes

Answered on 11/10/2015 by JAMES SWANTON
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Question

what diameter hole to drill?

Asked on 05/22/2014 by Undisclosed

Top Answer

it depends on witch unit you purchase a 1/2 inch pick up will need a 1/ inch hole saw eckt

Answered on 05/23/2014 by HUGH O NIELL
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