Jump to content

Welcome to TheMalibuCrew!

As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account. It's free and it's easy, so don't hesitate to join the TheMalibuCrew Family today!

Which of these Thru-Hull water pick-up fittings?


Slurpee

Recommended Posts

Howdy,

So it's my turn to do this project. And I see most folks using a variety of thru-hull connectors for their water pickups. I've found three from Groco that I think worthy. One's got a scoop and large strainer. One's notched for helping steer a high speed pickup. One's flush with the hull and is typical of the typ of connectors I'm seeing in the gallery.

What are y'alls opinions of them? They're all closely priced enough that I'd rather get the "right" one. I'll back them all up with a seacock on the dry side of the hull so I'm not really worried about size or impact resistance.

Cheers,

Bryan

post-153-1244860820_thumb.jpg

post-153-1244860830_thumb.jpg

post-153-1244860932_thumb.jpg

Link to comment

Oh, and before I get any jokes based on seacocks from you jokers. :) This is what my setup will look like. Frankly I'm a little scared at how many gallery images I see without any kind of strain relief beyond a nut on the dry side of the hull and some Sea-Life holding the thru-hull together.

post-153-1244861157_thumb.jpg

Link to comment

id use the factory style pickup, which looks like a drain plug fitting. but if you didnt want to go that route my next choice would be #3 of your pics

Link to comment
  • 4 weeks later...

For kicks I used #1 and it works as advertised. Full flow pickup even at 30mph. You've really got to dry-fit a time or two to make sure the pickup will be pointing in the right direction after you tighten it down though. Spent some time with the file on one of mine racing the Sea-Life while it was curing. Dontknow.gif

Link to comment
  • 4 weeks later...

I know this is an old thread, but I'm sure this is a common question for people that are retrofitting ballast, so I figured I would chime in.

If you're using aerator type pumps (Attwood, Rule, etc.) then use the third option. If you're using an impeller pump (Jabsco), use option 1 or, more preferably, option 2.

Link to comment
  • 1 month later...

For the record I used option #1 with Aerator style pumps. In retrospect I probably wouldn't use that one again just because it is a significant challenge to get the threads cut to the perfect length to wind up with the whole thru-hole / seacock assembly oriented correctly.

Link to comment
  • 2 years later...

Sorry to pump such an old topic, but I have more than a couple people contact me about the information I provided in my last post. We've learned a lot in three years since I posted that you should use a scupper style intake for reversible pumps.

We no longer recommend that, and our preference is to use a mushroom style intake for all systems, regardless of the style of pump. In fact, we no longer sell anything but mushroom type intakes. We did a lot of testing, and a mushroom fitting gives better performance, without the chance for debris to clog the intake, and will not force water past the impeller like scupper style pumps can. If anyone has questions feel free to contact me, otherwise, just go with the mushroom intake.

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...